Instant pin delivery system jobs

I'm looking to create a binding within Openhab for an Elmo alarm system. The binding needs to enable the following functionalities: - Remote arming and disarming of the alarm system. - Monitoring the status of individual sensors and zones. - Sending sensor states to OpenHAB items. I do have a similar project that was written in Python for Home Assistant which I can provide as reference and guidance. Ideal Skills: - Strong experience with Openhab binding. - Proficiency in Python programming. - Familiarity with the Elmo alarm system will be a plus.

I'm looking for an innovative designer who can create a multi-step order form for my Food Delivery service. The form should include essential fields such as customer information, payment details, and order customisation options. Key responsibilities: - Designing a user-friendly multi-step order form - Including customer information, payment details, and order customisation options - Presenting order customisation options using dropdown menus and checkboxes Ideal skills for this project include: - Proficiency in UI/UX design - Experience with form design - Strong attention to detail - Ability to create a seamless user experience

...existing ERP system. Key project aims include: - Customer data synchronization: Ensuring consistent, accurate customer information across platforms. - Order management integration: Streamlining order processes for increased business efficiency. - Inventory management synchronization: Maintaining real-time, synchronized inventory data between Zoho and ERP. With 11-50 users expected to utilize this integrated system, the ideal freelancer should not only possess strong experience with Zoho One and ERP integrations but also have a deep understanding of business processes, data management, and system admin work. Proficiency in managing user access and associated entity relationship is a plus. This endeavor aims to create a seamless workflow between Zoho and...

Key Responsibilities: - Secure Discounted Air Freight Rates Per 1 Kilogram: I need someone who can use their industry knowledge and connections to secure the most competitive air freight rates while maintaining the quality of delivery services. The air-shipping rate we’re looking for is $5 per 1 kilogram. - Air-Shipping Time Duration: We’re looking for air-shipping time duration between 1-14 days. - Final Destinations: To make sure the shipping company can deliver the product from China till our clients doorsteps in GCC countries. - Efficient Handling Of Electronics & Clothes: You should be well-versed in handling electronic goods and clothes to ensure they reach their destination in optimal condition. - In-Depth Knowledge Of GCC Customs Regulations: You should b...

...looking for an experienced software developer who can design a robust and user-friendly Tatkal ticket booking system specifically for Windows. Key features should include: - Ticket Booking: The software primarily needs to focus on facilitating ticket booking. It should be linchpin of the operation, thus needs to function seamlessly, quickly, and without glitches. - Booking Confirmation: Once a ticket is booked, an immediate confirmation should be sent to the user. This will require integration with email or other notification systems. - Seat Availability Check: Crucially, the software should allow users to check seat availability in real-time. This feature is crucial for making instant decisions on bookings. Ideal skills and experience for the project include proficien...

More details: Which platform(s) do you want the mobile application to be developed for? Both What primary function should the mobile application serve? Cloud Kitchen What features would you like the mobile application to have? Menu ordering, Delivery tracking, Customer reviews, Live Videos Streaming

Looking for someone with experience and track record in developing and managing e-learning systems for course delivery systems (Similar to Cousera/Udemy) . Having ready made and customizable solutions are welcomed. Users should be able to take short online courses in text, ppt or videos and earn certifications.

I am seeking a proficient course builder to design a fundamental, text and image-based online course. This will be self-hosted on my website. Key requirements: - Develop an engaging and informative course using text and images as main tools of delivery - Have extensive experience and expertise in creating online courses - Experience in self-hosting online courses is a plus - Provide innovative ideas to make the course more attractive and compelling The perfect candidate will have a strong understanding of how to create effective, engaging text-and-image-based educational content and possess excellent skills in course design. Previous experience in building and hosting courses on a client's website is preferred.

I'm seeking an experienced developer proficient in Node.js to create an online booking system for my hotel. Key Tasks: - Developing a booking system with easy-to-use interfaces for single rooms only. - Building an efficient room availability calendar. It is crucial for visitors to be able to easily check room availability and make immediate online reservations. Ideal Skills and Experiences: - Extensive experience in Node.js. Please provide proof of previous similar projects. - UI/UX design. The system should not only work efficiently but also be user-friendly and visually appealing. - Previous experience in building hotel reservation systems is a definite advantage. The goal is to streamline the process and increase my bookings. Please refer to the tasks a...

...customized CRM system specifically tailored for financial services and their freelancers. This system should be able to: - Track leads: The application should have a robust lead tracking system in place, allowing us to monitor and manage leads effectively. - Manage deals: Deal management is a crucial part of our business. The CRM system needs to support this feature to ensure smooth deal handling. - Provide performance metrics: It's important for us to evaluate the performance of our team. This CRM system should include tools to generate and present performance metrics. Additional features requested for this CRM system include: - Email integration: Seamless integration with email services to streamline communication and data management...

I'm looking for a ready-made ERP cloud accounting system like that offers these key features: - Inventory Management - Sales and Purchase Tracking - Financial Reporting I'm specifically seeking a system that has a: - Modern and sleek design I plan to integrate this ERP system with other software via API. Ideal Skills and Experience: - Experience with ERP cloud accounting system development - Proficiency in UI/UX designing - Proven ability in API integration with other tools - Familiarity with inventory management, sales tracking, and financial reporting systems. I want similar to

I need a skilled developer to integrate our custom in-house software with Oracle TimeCard. This is to allow for automated time entry. Key Requirements: - The integration should allow for automatic time entry from our custom in-house software to Oracle TimeCard. - The system should also enable the creation, updating, and deletion of timecard information in Oracle TimeCard. Ideal Skills: - Proficiency in Oracle TimeCard integration. - Experience with automated data transfer between systems. - Strong understanding of custom software integration.

We need a complete design of sand separation system using cyclones to separate sand under 150 microns including air blower - feeding capacity 45 tons/hour of sand. Max cyclone dia 1.2m

I'm looking to sell a residential solar photovoltaic (PV) system that stands out for its energy storage capabilities and off-grid independence. The estimated space for installation is a medium-sized residence (1,000 - 2,000 sq ft). Ideal skills include: - Expertise in solar panel design and installation - Knowledge of battery energy storage systems - Understanding of off-grid solar systems - Experience with residential projects - Ability to estimate solar power needs based on space size Offer your skills to make this solar PV system stand out in the residential market.

Hi guys, Thanks for your interest in writing for us. IMPORTANT: Human writing only - No AI or Rewriting - (we check) AGAIN BECAUS...and when given one you must make sure to submit the work in time. Please tell us about your availability in your proposal. *Naturally, all the content should be original. All the content must pass Copyscape. *By bidding on this project you understand that any writing work you'll do for us will be done on a pay-per-work basis, and that you transfer all the rights to the content you deliver upon delivery and will not publish the content anywhere, including online portfolios etc., or use it in any other way. We'll try promising applicants out with a paid test article. As such, please submit a proposal of $20. Thanks in advance for submi...

I'm looking for a skilled developer to design and build an AI-integrated Learning Management System (LMS) that focuses on automated content delivery. The aim is to enhance the user experience and streamline the learning process. Key Features Needed: - Adaptive Learning Paths: The LMS should be able to assess the user's strengths and weaknesses and recommend a customized learning path. - Skills Assessment: Users should be able to conduct self-assessment tests to gauge their learning progress and understanding. The content that will be included in the LMS comprises text-based courses, video lectures, and interactive quizzes. The system should be able to manage and deliver these content types effectively. This project requires a developer with a strong backg...

Plants/Gardener, Car, Bike, Gym, Petrol, Bank, Investment, Gold, Stock Market, Train/Metro, Bus, Transport, Mobile phone, Dining out, Food delivery, Gift

...ASTPP/Freeswitch developer to create an Interactive Voice Response (IVR) system for my project. The primary goal of this IVR system is to Play a pre-recorded message when a customer calls a DID, then route the call according to any routing rules configured on the dialplan. This means that the system needs to be designed to handle customer queries and direct calls to the appropriate department. Ideal Skills: - Proficient in ASTPP/Freeswitch - Experience in IVR system development - Strong understanding of customer support processes - Ability to design system for call routing The project is expected to be completed within a reasonable timeframe. A successful candidate will be able to understand the nuanced requirements of the system and devel...

Start your offer with the word in the att...Videos on their sites. Prepare a list with : Name of the company, youtube Channel, Link to the first youtube video you find on the site, PLZ, City, State, Phone, Mail, Website Niches: Construction Systems in Austria, Germany and Switzerland Phsiotherapeuts in Austria, Germany and Switzerland I would like to have at least 2000 websites with top-quality data. Delivered in 1 day. Delivery in one Excel file. Time of delivery is a key element in our decision. Offer a price for 2.000 data entries. We extend our partners for this kind of task´s. With all of them we have a longterm Partnership. To decide who is our partner and to see your understanding, please provide a sample with at least 50 data entries within 2 hours of start...

...understanding of our services and engaging them to explore further or reach us. • Professional: The tone should be courteous and professional, reflecting our dedication to providing quality IT services. For this task, I am looking for an experienced content writer with specific skills in SEO, persuasive writing and familiarity with the IT industry. Strong attention to detail and a commitment to delivery deadlines is important....

...in Chennai, to work on a weekly basis for my YouTube vlog channel. Key Requirements: - Location: The ideal candidate must be based in Chennai to facilitate in-person meetings, if needed. Scope of Work: - Video Editing Style: The videos are Vlog-style, so you must be well-versed in this type of editing. - Weekly Commitment: I require your services on a weekly basis, so reliability and prompt delivery are key. Ideal Skills: - Proficiency in video editing software - Experience in Vlog-style editing - Excellent communication skills and ability to meet deadlines - Prior experience in YouTube content editing is a plus If you're a video editor with a passion for Vlog-style content and based in Chennai, I'd love to hear from you. Please provide a portfolio of your previo...

...images) are visually appealing and aligned with the presentation’s theme. Quality Assurance: Review each redesigned slide for consistency and professionalism. Make adjustments based on feedback to ensure high-quality output. Ensure that all slides adhere to the guidelines and project Review and Delivery: Conduct a final review of the entire presentation. Make any necessary final adjustments. Deliver the enhanced PowerPoint presentation. Timeline Final Review and Delivery: 2 day (due Sunday) References for Design Inspiration 1. 2. 3.

I am seeking an experienced freelancer to code for an Industrial Automation System specifically focusing on manufacturing process control. Key Tasks: - Develop efficient code for my Industrial Automation System. - The code should aim at automating the manufacturing process control. - Testing the code for effectiveness and making necessary improvements. Skills and Experience: - Strong experience with IoT devices, especially industrial automation systems. - Exceptional coding skills, particularly in an industrial background. - Experience in manufacturing process control. - Ability to work quickly and effectively, as the project is needed ASAP. Experienced with Microsoft Azure Timeframe: The project should be completed as soon as possible. Applicants should have immediate...

...ensure that our vehicles are always in top shape and promptly handled when they need repairs. - Managing driver scheduling and route planning: You'll need to coordinate the schedules of a small team of drivers and plan the most efficient routes for each trip. - Handling logistics and coordination: You will be responsible for ensuring that all our logistics run smoothly, from receiving orders to the delivery of goods. Skills and Experience: - Familiarity with fleet management software: Proficiency in using this software will be essential for this role. - Experience with GPS tracking systems: You should be able to use these systems effectively to monitor our vehicles and optimize their routes. - Knowledge of transport scheduling software: An understanding of this type of soft...

...applying. Position Overview: We are looking for a dynamic Project and Delivery Manager in the IT or Business sector who excels in project management and embodies an entrepreneurial spirit. This role requires the ability to establish or already have an existing company for collaboration purposes, promoting an entrepreneurial approach to team leadership and development. Main Requirement: Candidates must have their own established company or be willing to establish one to work with us. This unique aspect of the role allows you to approach and engage with candidates who align with our company values and objectives. We will cover any expenses incurred in hiring new candidates. Responsibilities: - Lead the successful delivery of projects, ensuring they meet high-quality st...

Seeking a Google Playstore account for instant entertainment and games app deployment, with a focus on teenagers. In brief: - I aim to bypass the testing process prevalent in the usual account creation. - The focus of my app portfolio will be on applications that cater to the teenage demographic. Ideal Freelancer: - Experience with Google Playstore account transactions. - Proficiency in developing and publishing entertainment and games apps. - Understanding of the teenage market and its preferences.

I'm looking for a skilled video editor who can take the raw footage and transform it into engaging high-quality content. Key Requirements: - Creative Editing: I need someone who can weave together the footage in ...editor who can take the raw footage and transform it into engaging high-quality content. Key Requirements: - Creative Editing: I need someone who can weave together the footage in a way that captures attention and tells a story. - Attention to Detail: The final product needs to be polished, with attention to color grading, transitions, and sound quality. - Efficient Delivery: I'm working with a tight deadline, so timely delivery is a must. If you're a creative video editor with a passion for storytelling and a knack for creating engaging con...

I am engrossed in studying a company's customer, product, and trucks data for my PhD research. Contemporary businesses encounter a significant challenge wherein their delivery trucks often travel from one region to another with insufficient loads (Half of the trucks are empty), resulting in inefficient use of resources. My research aims to minimize the number of empty or partially filled trucks traveling to those areas, particularly in the last-mile delivery process. Below is a list of stores. I kindly request you to extract the dataset from one of the listed companies. The list of stores is prioritized in order. 1- IKEA (IKEA store that located in Saudi Arabia) 2- Home Centre 3- Home Box

The Job You will be responsible for : Handling inbound calls and emails in a professional manner. Resolving customer inquiries and requests and ensuring strong customer satisfaction. Working with various internal teams to ensure prompt and accurate order processing and delivery. Escalating customer feedback as required. Ideal Candidate You have at least 1 year experience within a Customer Service or Customer Success role, ideally within the Ecommerce / Marketplaces, IT Services and Retail industry. You possess excellent interpersonal as well as written and verbal communication skills. You are a strong team player who can manage multiple stakeholders You are adaptable and thrive in changing environments You pay strong attention to detail and deliver work that is of a high standard

1. Introduction This specifications document outlines the requirements for developing a mobile applic...technical documentation APK for Android IPA for iOS Instructions for publishing on Google Play Store and Apple App Store 7. Project Timeline The project timeline is estimated to be 6 weeks, divided as follows: Weeks 1-2: UI/UX design and development of the loading screen and login page. Weeks 3-4: Development of the WebView and integration of Wonderpush. Week 5: Testing and bug fixing. Week 6: Delivery, documentation, and assistance with publishing. 8. Freelancer Selection Criteria Proven experience in Flutter development Portfolio of similar projects Skills in integrating third-party APIs (Facebook, Google, Wonderpush) Availability and ability to meet deadlines Good communicat...

I'm on the lookout for a senior NodeJS Typescript developer with a high level of skill and a good grasp of English. The role specifically involves backend development. Key requirements include: - Senior level experi...Typescript developer with a high level of skill and a good grasp of English. The role specifically involves backend development. Key requirements include: - Senior level experience in NodeJS and Typescript - API Development experience - Architectural Mindset - Fluent English - Prior work on backend development projects - Strong command of English, as our communication channel will be primarily through instant messaging - Must be European! - AWS Knowledge Plus If you match these requirements and are keen to work on an interesting backend project, I would love to...

I'm looking for a skilled professional to improve the accuracy of my cloud-based database. To achieve this, the tasks at hand include: - Identifying and removing duplicate entries - Standardizing data formats to ensure consistency - Conducting routine data cleaning checks to maintain accuracy Ideal candidates should have: - Proven experience in data cleaning and management - A ...include: - Identifying and removing duplicate entries - Standardizing data formats to ensure consistency - Conducting routine data cleaning checks to maintain accuracy Ideal candidates should have: - Proven experience in data cleaning and management - A deep understanding of cloud-based database systems - Strong communication skills as I prefer to get updates and progress reports through an instant...

Your Responsibilities: System Monitoring and Maintenance You will monitor system health, proactively respond to monitoring alerts, and inspect application and system logs to take appropriate action in case of error conditions. Development and Implementation You will support in defining and implementing Kubernetes deployments and provide consultation in creating Kubernetes manifests for custom deployments. Software Audits and Disaster Recovery You are responsible for software updates, VM configurations, and the system's disaster recovery. • general VM updates and configuration through ours to be built IaC definitions (Terraform, Ansible and Kubernetes) • inspecting newer container images and software versions • planning and executing updates on infr...

I am in need of a skilled frontend developer to build the interface for my customizable meal delivery website. The website is designed to cater to users who would like to customize their meal plans as they order. Key Functionalities: - Real-time order tracking: I'd like the website to have a feature that allows users to track their orders in real time. This feature is essential for providing a great user experience, ensuring customers are up to date on their orders and can anticipate delivery times. Skills and Experience: - Proficiency in frontend development: You should have prior experience in developing user-friendly and visually appealing websites. - Familiarity with real-time tracking systems: Experience with implementing real-time tracking features on websites wo...

I am seeking a qualified professional with experience in both architectural and engineering drawings for a residential building. My focus is primarily on achieving accurate and detailed elevations. The ideal candidate should possess: ...primarily on achieving accurate and detailed elevations. The ideal candidate should possess: - A solid background in residential design - Expertise in architectural and engineering drawing production - Extensive knowledge in generating elevations for residential buildings - Ability to adhere to standard codes and practices in architecture and engineering The completion of the project will entail the delivery of all required and satisfactory elevation views that my construction team can execute. Accuracy and attention to detail are paramount for thi...

...control of ventilation systems. The ability to work across multiple platforms is essential as the application needs to be compatible with iOS and Android devices, as well as Windows computers. Primary Features: - Timer scheduling - Remote control of ventilation systems - Monitoring parameters including temperature, humidity, twilight, and weather - Real-time notifications and alerts - Scheduling system actions - Support for multiple users simultaneously Given the sensitive nature of the data and operations, the application must be secure. Your work will involve implementing advanced encryption to safeguard our communications and data. The ideal candidate for this project should be proficient in mobile and desktop application development, with a deep understanding of systems�...

I'm seeking to build a comprehensive Pension Fund Administrative Management System tailored for my fund with 500 members. The system should incorporate the following key features and functionalities: - Workflow Tracking: The system should be capable of monitoring and managing internal workflows, ensuring tasks are assigned to specific users, with set deadlines and progress tracking. - Contribution Tracking: The system should accurately record and manage the contributions made by each member. - Investment Tracking: The system should include a functionality that tracks the investments made by the fund. In addition to the above, the system should have a Loan Management Module that allows the fund to offer loans to its members. The Loan Manageme...

I'm in need of a skilled freelancer who can perform daily scraping of job titles from Indeed. Ideal Skills and Experience: - Proficient in web scraping, particularly from Indeed - Able to automate the scraping process on a daily basis - Competent in delivering data in CSV format Data Update Frequency: - It's essential that the scraping is carried out daily Delivery Format: - The scraped data should be provided in a CSV file Looking forward to your proposals.

I'm on the hunt for a highly skilled and experienced developer to create a Management Information System (MIS) for my supply chain operations. Critical features should include: - Order Tracking: The system should provide up-to-date information on order status and delivery dates. - Supplier Management: The software should keep track of supplier-related data including payment information. For the inventory management component, the following capabilities are imperative: - Real-Time Tracking: The system should provide instantaneous updates for inventory data. - Low Stock Alerts: The ability for the system to alert when inventory runs low is crucial. - Sales Forecasting: Incorporation of a sales forecasting tool based on inventory output and sales...

I need a skilled photo editor who can efficiently remove a minor scratch from a digital picture. The scratch is located over the main subject of the image and must be removed without damaging the overall quality of the image. Ideal Skills and Experience: - Expertise in Photo editing tools like Adobe Photoshop - Previous experience with scratch removal or image restoration - Attention t...a minor scratch from a digital picture. The scratch is located over the main subject of the image and must be removed without damaging the overall quality of the image. Ideal Skills and Experience: - Expertise in Photo editing tools like Adobe Photoshop - Previous experience with scratch removal or image restoration - Attention to detail while maintaining image quality - Quick and efficient delivery...

It’s online hotel booking management job! Not a developer job! I am looking for a full-stack staff with experience in managing online hotel system. Key Features: - Reservation Management: manage reservation on different includes a calendar view to visualize and manage bookings. - Claim Handling: be responsive handling of customer issues. -adhoc task upon discussed Ideal Experience: - Prior experience in managing hotel management systems or similar online management platforms is highly desired. - Good communication in English if you can speak mandarin it is an advance point. Please submit your proposal. If you're confident please provide a short introduction about yourself.

I'm searching for a skilled professional who can help compile and design digital catalogues for our products. Key Requirements: - Experience in creating engaging digital catalogues - Ability to work from information and images shared via email - Keen eye for design and attention to detail - Prompt delivery within a month Ideal Skills: - Graphic design and layout experience - Proficiency with digital catalogue software - Strong communication and project management skills Feel free to provide examples of previous digital catalogues you've designed.

We are looking for a talented and fast-paced graphic designer/animator to create 21 high-quality assets for our website, Dealer Essential. These images will be used to enhance our Products page and other sections of our site, highlighting the benefits and features of our software for small-medium dealerships. Project Details: - Budget: 80 NZD $ - Delivery Timeline: 2 days - Number of assets: 21 - Page Link: Design Spec Example: ---Experience in creating professional, high-quality website images/animations ---Ability to understand and visually communicate the key benefits and features of our software ---Fast turnaround time without compromising on

I am looking for a proficient software developer to build an all-inclusive student fee management software. Key Features: • Ability to track multiple types of student fees • Capability to generate detailed fee reports • An automated reminder system. The software must smoothly integrate with our existing systems which include the school management system, attendance system, and our accounting software. Ideal Skills: • Experience in educational software development • Strong background in systems integration • Skilled in automation and report generation.

The prime objective of this task is to create hyper-realistic 3D renders to enhance a training video series. The rendered imagery will be integrated within the video series to provide visual aid a...company, so all important markings are already laid out, so, I'm imagining it's like normal render from site plans, but with providing them in a format that I can use for the training material. Your creativity will play a role in ensuring these graphics are comprehensive and engaging. At the end of this project, we expect detailed renderings, ready for use within our training materials. The Delivery will be either various layers or a Large .PSB with all layers marked. You will be working directly with me and I'm happy to jump on a call to discuss the project further to ...

...the web. The application should mirror the functionality and structure of , with key feature additions including: - social platform registration/signin (google, facebook, twitter) - Advanced product searching capabilities - An intuitive and responsive shopping cart system - Smooth payment gateway integration - feedback system - Posting offers, offers acceptance/bidding - Powerful Advertisement mechanism (this model will monetize only on ads) - facility to integrate with local logistic partners for delivery/estimate/tracking In terms of design, I'm searching for a colorful and vibrant style blended with a professional and corporate touch. The user interface (UI) and user experience (UX) design should be cutting-edge, ensuring a seamless and enjoyable browsing...

...Demo/Example - Please sign up for and check their dashboard ########################################################## Social Login/Create account (Separate customer and Designer Login) ########################################################### Customer Dashboard Order Handling -------------- Past Orders Order Requirements (Quiz* and additional comments) Order Updates Order Delivery Date Order Tracking Order Payment Order Deliverables Order *Quiz ---------- Select service select size Select colours Select additional information Comments Attachments Submit Two way chat (communication) Your Profile Notification settings Payment Settings ############################################################# Designer Dashboard ------------------ Kanban Board ######################...

...a ticket reservation system to help manage vehicle bookings at my car repair workshop. Key Features: - Customers should be able to specify the type of repairs they need by describing it in a text field. - The system should capture this information, along with the basic details like their name, contact information, and the time they'd like to come in for the repair. Skills and Experience Required: - Experience in building ticketing systems, ideally for a service-oriented business like a workshop or a customer support center. - Familiarity with implementing text fields for user input. - Good understanding of user experience and interface design for a seamless customer journey. - Knowledge in database management to store and retrieve customer information. The s...

I'm looking for a responsible individual to pick up a medium-sized ...properly provide an address to UPS to have the package delivered to. The package contains miscellaneous items and doesn't require any special handling or care as it's not fragile. Key Requirements: - Ability to lift and handle packages up to 50 lbs in weight - Located in Sweden and has easy access to a UPS delivery center - Prompt, reliable, and communicates effectively Ideal candidates will have: - Prior experience in courier services or delivery jobs - An understanding of UPS delivery procedures and guidelines - Excellent organizational and time-management skills. A brief briefing will be held to provide any additional information on the package and its contents. Timeliness and...

...Reference information] ([1] and [3] are for reference only) 【1　Background】 This technology pertains to a system that utilizes mobile devices in vehicles. Specifically, it combines a smart key system with Ultra-Wideband (UWB) wireless communication to authenticate the mobile device with the vehicle and precisely detect the location of the device. Based on this location, the system determines whether to allow or deny vehicle operations. This aims to enhance security and service quality. However, since UWB communication uses high-frequency bands, communication may become challenging depending on the device's location and surrounding environment. Therefore, this technology aims to provide a system that facilitates reliable high-frequency communication betwe...