Beautifully designed, simple and elegant appearance Using PC material panel and acrylic screen film is not easy to crack Use dot matrix screen to indicate working status Anti-power supply reverse design, even if the power supply is reversed will not burn the product, AC and DC Bluetooth is based on CLASS 2 power level, adopts Bluetooth 2.1+ specification, compatible with Bluetooth 3.0 and below versions, transmission distance 10 meters. Used in home stereo, car audio and computer multimedia audio, professional active audio, audio, AV power amplifier, massage chairs, electronic gifts, electronic toys and so on. Particularly suitable for speakers (sound) DIY enthusiasts Supply power: AC/DC12V 1A External interface mode: USB, SD Output amplitude: 600MV Rated input: 12V/1A Rated power consumption: USB playback current 120MA Other states :80MA Working temperature: -20 Celsius ~60 Celsius Standard configuration: 1PCS ultra-thin 21-key slim remote control Operating voltage: 12V Operating current: Less than 200Ma; Output range: 600mV, Bluetooth effective distance is 10 meters. Support U disk and SD/MMC card playback, support three formats decoding (MP3/WAV) Support FAT16, FAT32 file system. Support MP1 Layer3, MP2 Layer3, MP3 Layer3 version of the song. Supports 32-320kbps MP3 songs Support FM radio (FM) Support infrared remote control Bluetooth is based on the CLASS 2 power class, uses the Bluetooth 2.1+ specification, is compatible with Bluetooth 3.0 and below, and has a transmission speed of up to 3 Mbit/s Colour:Black Material:Plastics Size:140 x 55mm Weight: 90g Package Contents: 1 x MP3 decoder board 1 x remote control Only the above package content, other products are not included. Note: Light 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.