12V Wireless AudioColor Screen Bluetooth MP3 Decoder Board MP3 Player USB TF FM Radio Module Remote Control For Car Speaker Main function: 1. Double decoding supports music in MP3/WMA/WAV format; 2. Support Bluetooth function; 3 with digital tube display; 4 support MMC / SD / MMA and other cards support USB interface (U disk); 5 power failure memory function 24C02; 6 support 5-10 meters distance infrared remote control operation; 7 support for external audio input LINE IN (AUX); 8 support radio FM receiving frequency band (87.5MHZ-108.0MHZ); 9 button: four buttons multi-directional control MODE / previous song / play / pause / next song; The button operation details: 1. Previous button (volume down): Short press in the MP3 state for the previous song long press for the volume to decrease; short press in the FM state to adjust one station number; short press under the Bluetooth function Bluetooth is a song long press to reduce the volume. 2. Play/Pause: Short press in MP3 state for play/pause; short press in FM state for play/pause long press to automatically receive and save the station; short press for play/pause under Bluetooth function. 3 the next song button (volume increase): in the MP3 state short press for the next song long press for the volume to increase; short press in the FM state to adjust a station number; short press under the Bluetooth function Bluetooth next song long press for the volume to decrease. 4. MODE button: Switch between USB/SD/FM/AUX/Bluetooth function. Package Content: 1 x Decoder 1x remote controller(without battery) 1 x Surface Shell