Portable Wi-Fi Internet Radio with Rotary Encoder & Web Control
Enjoy thousands of Internet radio stations from around the world with this compact, battery-powered Internet Radio built around the ESP32-S3 platform.
Simply connect it to Wi-Fi and start listening. Control the radio using the build in Rotary Encoder, or manage it remotely from your phone, tablet, or computer using the built-in web control system.
Designed for radio enthusiasts and technology lovers, this fully assembled Internet Radio combines modern streaming technology, intuitive controls, and a unique compact design.
✨ Key Features
🎧 Clear display Interface with Rotary Encoder
Easily browse stations, select channels, adjust volume, control playback and edjust settings using built in rotary encoder.
🌍 Thousands of Internet Radio Stations
Access thousands of online radio stations from around the world. Save and manage up to 1000 favorite stations.
🔎 Built-In Station Search
Quickly find and add stations without manually entering stream URLs.
📱 Web-Based Radio Control
Control your radio and manage your station list from any phone, tablet, or computer connected to the same Wi-Fi network.
🔋 Portable Battery Operation
Use the radio anywhere with a rechargeable battery, or power it directly through USB-C.
🔊 High-Quality Digital Audio
Includes a digital I2S audio amplifier and a 5W speaker for clear and powerful sound.
🎵 Optional Bluetooth Support
The Bluetooth version includes a transmitter for connecting wireless headphones, earbuds, or Bluetooth speakers.
🖥 Compact Custom Enclosure
A custom 3D-printed enclosure provides a unique appearance while keeping the radio compact and portable.
📦 Available Versions
Standard Version
- Ready to use straight out of the box.
- Simply connect the power, connect to Wi-Fi, and start listening through the internal speaker.
- Without Bluetooth transmission.
Bluetooth Version
- Includes all the features of the Standard Version, plus Bluetooth transmission for wireless headphones, earbuds, and speakers.
🛠️ DIY Kit
- Build the Internet Radio yourself using the supplied hardware and components.
- Requires assembly and basic electronics and soldering skills.
- Requires some basic tools, such as a soldering iron, glue gun, wire cutters, and pliers.
- Available with or without Bluetooth transmission.
🌐 Language Support for Station Names
The firmware supports station names in:
- English
- Greek
- Latin-based languages (Polish, French, German, Spanish, and many more)
- Cyrillic-based languages
- Hebrew
- Arabic
⚙️ Technical Specifications
- ESP32-S3 Wi-Fi microcontroller
- Color display
- Supports Internet radio streams up to 320 kbps
- Supported formats: MP3, AAC and OGG/Vorbis.
- USB-C power input
- Battery compatible
- Stores up to 1000 favorite stations
- Requires a stable Wi-Fi connection
- L 11.1cm , W 2.7cm, H 6cm
⚠️ Important Notes
- 18650 Li-ion battery not included. Due to shipping restrictions, the battery is not supplied with the radio.
- The MicroMaker is designed to use a 3.7V 18650 Li-ion rechargeable battery. Use a standard, unprotected, flat-top 18650 cell. Do not use protected batteries or batteries with a raised/button-top (+) terminal as they will not fit inside the enclosure. Recommended battery Samsung INR18650-35E 3450mAh 8A.
- The radio can also operate directly from the USB-C power connection without a battery installed.
- Do not use a fast charger or USB-C Power Delivery (PD) charger. Use only a standard 5V USB-C mobile phone power charger.
- If you choose to use a battery, please use a high-quality, compatible 18650 Li-ion cell from a reputable supplier and follow the battery manufacturer’s safety instructions.
- Some streaming services using HLS/DASH formats may not be supported.
Demo Videos
Demo videos showing the Internet Radio in operation can be found on The MicroMaker YouTube channel:























Robert –
I’m very impressed with this radio. The sound is good, the station selection is huge, and the web interface makes managing stations very convenient. Personally, I much prefer the rotary dial over a touchscreen—it feels more natural and enjoyable to use when browsing stations and adjusting the volume. The compact portable design is also a great bonus!