Module Electronics AUX Radio Car Amplifiers MP3 Decoder Audio FM Receiver

Support U disk, SD card reading, support external audio input. 6, support for USB interface (U disk). 3, PREV button (last song/fast rewind): in the MP3 state VOL-short press for the last song, long press for fast rewind; in the FM state short press to adjust a station number upward; in the Bluetooth function short press for Bluetooth last song.