DIY Electronic Kit RDA5807M FM Radio 87-180MHz with Digital Tube Display STC15 Microcontroller Electronic Soldering Projects The use of STC15 microcontroller as the main control chip, the application of RDA5807M radio chip, with 87-108MHz global FM receiving band compatible effect, with noise elimination, software mute, bass enhancement, high sensitivity, low noise, strong anti-interference ability and other advantages. Amplifier part of the TDA2822 power amplifier IC, with a simple circuit, good sound quality, wide voltage range and so on. (The delivery is in parts, and the styles of different accessories in batches are slightly different, which not affect the use.) Product name: FM radio kit Operating voltage: DC5V/3V (dual power supply, power supply mode is optional) Speaker: 0.5W8Q Receiving frequency range: 87-108MHz Antenna length: 84mm (extension up to 255mm) Product size: 95 x 59 x 25mm No batteries, need to provide their own 2 AAA batteries It's DIY kits, needs to finish by yourself. Color: Black Material: ABS Package Contents: 1 * RDA5807M FM Radio kit (The goods are shipped in separate parts, and the styles of accessories vary slightly from batch to batch) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.