Description: 【DIY Radio Speaker Kit】: It is easy to assemble and equipped with nuts, screws and other components, you can do it, a cool project. 【High Performance】: FM radio, 5.0, voice activated LED, infrared remote control, USB port, TF card port, audio cable port, call function, clear sound quality 【Working Voltage】: DC 5V (it is recommended to use a 2A mobile phone fast charging head for power supply); Working current: greater than 1A (the working current is different for different radio stations and different music); Static working current: about 40mA (no music playing); Output power: 2x3W 【Double Decoding】: Mini speaker unit electronic parts support MP3 / WAV / / APE lossless format music; support MMC//MMA and other cards, support USB interface (U disk) 【Features】: Make a radio kit with 2x3W amplifier, connect 2 3W speakers at the same time; digital screen display; power off memory function; support external audio source input LINE IN support FM radio, search frequency band (87.5MHZ- 108.0MHZ) Specification: Material: Acrylic Product Size: 13 cmx7.5 cmx6.04 cm/5.12 inchx2.95 inchx2.38 inch Package Includes: 1 Set Radio DIY Kit Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.