Car 5V Audio MP3 Player Decoder Board FM Radio SD Card USB AUX, with Bluetooth Remote Control 1. Jerry solution, dual decoding supports MP3 WMA WAV format music 2. With Bluetooth 3. With digital tube display 4. Supports MMC SD MMA cards, USB interface (U disk) 5. Support radio FM, cable receiving frequency (87.5MHZ-108.0MHZ) 6. Power-off memory function 24C02 7. Support 5-10 meters infrared remote control operation 8. Support LINE IN (AUX) 9. Buttons: Four-button multi-directional control, PLAY PREV NEXT REPEAT EQ MODE Key operation details: 1. PLAY button (play pause): PLAY short press in MP3 state is play pause, short press in FM state is play pause, long press is automatic closing and saving station 2. PREV button (previous song turn down the volume): In the MP3 state, a short press of PREV will be the previous song, a long press will decrease the volume, and a short press in the FM state will increase the station number by one. 3. NEXT button (next song speaker up): In the MP3 state, a short press of NEXT is the next song, a long press is to increase the volume, and a short press in the FM state is to down a station number. 4. REPEAT (repeating): single click in MP3 status for repeat function, single click to cancel repeat function 5. EQ: sound field mode, test 6 kinds of sound quality: classical jazz rock heavy bass popular normal 6. MODE button (analog): switch between USB SD FM AUX Bluetooth sequentially