1.Introduction:
  It is an 87.0MHz-108.0MHz Wireless FM Radio Receiver DIY Kit with Red/Green spectrum indicator flashing automatically.
  It has a blue 4Bit segment display screen which can clearly display the receiving frequency.
  It is a very interesting DIY electronic product which enables users to understand the circuit more clearly and learn soldering skills.

2.Feature:
  1>.Multi-Audio Source Selectable: It supports Bluetooth/FM/U-disk/TF Card audio input which can play FM or MP3 or lossless music files. User also can play/pause/next/prev/vol+/vol- music by remote controller or on-board buttons. Note: For bluetooth connecting, please turn on the radio and search for "BT_Audio" in your phone to connect.

  2>.Bluetooth Player: Built-in Bluetooth audio receiver and power amplifier directly drive mono 4ohm 3W speakers and the sound is very clear. User also can connect headset.

  3>.LED Spectrum: Built-in red/green LED spectrum indicators which can flashing with music to achieve dynamic and gorgeous lighting effect. Potentiometer adjustable sensitivity.

  4>. Automatic Radio Station Search Function. Make it more convenient and effortless to choose the radio station you want to listen to without any hassle or decision-making on your part.

  5>.Good for electronic soldering practice and learning. It’s a DIY kit which comes with various components. User need to install each component by hand. It not only can exercise and improve soldering skills, but also increase the interest in electronic technology. Great for electronics hobbyists, beginners, school and home education.

  6>.Rechargeable: It is powered by 3.7v polymer lithium battery which can be used as outdoor mobile speaker. Built-in charging module is also more convenient for battery charging. (Note: Battery was not included in this item.)

3.Parameter:
  1>.Product Name:FM 87-108MHz Radio Receiver DIY Kit
  2>.Work Voltage:DC 4.5V~5.5V
  3>.Output impedance:4ohm
  4>.Output power:3W
  5>.Output channel:Mono
  6>.Audio source:Bluetooth/FM/U-disk/TF Card
  7>.Output type: Speaker or AUX
  8>.Receiver Frequency:87.0MHz~108.0MHz
  9>.FM station: Automatic radio search
  10>.Audio format: MP3
  11>.Charging interface: DC-022 Power Socket
  12>.Size(Installed):98x75x45mm

4.Use Methods:
  1>.MODE Button: Switch Audio Mode. Press button to switch Bluetooth/FM/AUX/U-disk/TF Card play mode. Note: Play U-disk/TF Card music first after insert USB flash disk or TF card.
  2>.P/P Button: Short press to play or pause music. Keep press 3second to automatic radio search.
  3>.NEXT Button: Short press to switch next music. Keep press 3second to increase volume V++.
  4>.PREV Button:Short press to switch previous music. Keep press 3second to decrease volume V--.

5.Note:
  1>.It is a wireless module, so do not use it in an environment with signal interference.
  2>.It is not recommended to play music when recharging to avoid damaging the battery.
  3>.Keep press Play Button 3 seconds to auto search for FM stations and save.

6. Components List

7.Installation Manual: