Because staying connected shouldn’t mean compromising your adventure.

Welcome to Ear🔗Link, a device that aims to seamlessly integrate traditional radio communication with wireless Bluetooth audio. Whether you’re skiing, snowboarding, motorcycling, or climbing, EarLink helps you keep in touch with your team—while also letting you enjoy your favorite tunes.

Ear🔗Link is a compact, weather-resistant device that acts as a “bridge” between:

1. Traditional Radio Systems (for reliable, long-range comms).
2. Bluetooth Headphones (for modern, wireless audio).
3. Smartphones (for music and phone calls).

The core idea is to pause music automatically whenever a radio signal arrives, so you never miss important messages in the field. The result? A hands-free, convenient, and reliable communication system for outdoor adventurers.

When you’re far from reliable cellphone coverage, traditional radios are still the gold standard. Ear🔗Link integrates seamlessly with popular radio systems, ensuring you can call for help—or just coordinate with friends—no matter where you are.

Ear🔗Link pairs with your Bluetooth headphones and smartphone, allowing you to enjoy music, podcasts, or any audio source without juggling devices or risking dropping your radio on the slope.

From snowy peaks to dusty trails, Ear🔗Link is built to withstand harsh environments. It’s lightweight, rugged, and designed specifically with outdoor sports in mind.

Long battery life keeps you going during extended climbs, off-road rides, or day-long skiing. Adventure confidently, knowing your communication and entertainment won’t cut out halfway.

Here’s an abstract diagram showing how Ear🔗Link fits together:

1. ESP32 Board (A2DP Sink): Receives audio from your phone over Bluetooth.
2. Codec: Converts between analog signals (radio) and digital signals (ESP32).
3. ESP32 Board (A2DP Source, “Host”): Streams combined audio to your Bluetooth headset.
4. Bracelet (ESP32 BT HID): Optional remote control (push-to-talk, play/pause) worn on your wrist.
5. Radio: Connects via typical speaker/mic ports, bridging analog radio comms with digital Bluetooth audio.

Want to dive deeper into the technology and our vision?
EarLink White Paper

It covers:

• The challenges faced by outdoor adventurers.
• Our unique approach to combining radio and music functionalities.
• Key product features, market opportunities, and future developments.

• Discord/Telegram: TODO.
• Issues: Found a bug or want to request a feature? Open an issue in the relevant repository! (They're private, as our project is not open-source XDD)
• Wiki: Browse the wiki for FAQs, troubleshooting steps, and advanced configuration guides. (Yeah we don't have any FAQs, so figure it out yourself pls)

This project is distributed under the EarLink Strict License. All rights reserved.
No rights to copy, modify, distribute, or make derivative works are granted without prior written permission.

Please see the LICENSE file for full details.

• Organization: Ear🔗Link
• Email: support@earlink.org
• Maintainers:
  • Product Owner: Stanislav Kosarev
    • github: @miumiumiux
    • email: stan@earlink.org
  • DevOps: Boris Dvorkin
    • github: @worthant
    • email: worthant@earlink.org
  • Embedded Engineer: Igor Modelkin
    • github:
    • email: igor@earlink.org
  • ?? Engineer 🕶️: Andrey Setyaev
    • github: @obormotov
    • email: obor@earlink.org

Ear🔗Link · Because the mountains (or slopes, or roads) can be tough enough—your communication shouldn’t be.