1. Dual decoding supports music in MP3/WMA/WAV/FLAC/APE formats; 2. Support Bluetooth calling function; 3. Equipped with power amplifier; 4. Supports DC5V charging; 5. Supports MMC/SD/ and other cards, and supports USB interface (USB flash drive); Power off memory function; Support infrared remote control operation at a distance of 5-10 meters; Support MIC karaoke jack; Support FM radio reception and frequency range (87.5MHZ-108.0MHz); Button: Four button multi directional control, VOL-/ AUTO / VOL+ / MODE; Detailed button operation: 1. VOL button (previous track/volume decrease): In MP3 mode, short VOL button for previous track, long button for volume decrease; Short in FM mode to move up one station number; Short to play the previous song on Bluetooth, long to decrease the volume. 2. AUTO button (play/pause): Short AUTO in MP3 mode to play/pause; Short to play/pause in FM mode, long to automatically receive and coexist channels; Short to play/pause under Bluetooth function. 3. VOL+button (next track/volume up): In MP3 mode, short VOL+button for next track, long button for volume up; Short in FM mode to downgrade one station number; Under Bluetooth function, short for Bluetooth next track, long for volume reduction. 4. MODE button: Switch between USB/SD/FM/Bluetooth functions in sequence. Color: As Shown Material: PCB Package Contents: 1 x Decoder Board 1 cord 2 x Audio output cable Only the above package content, other products are not included. Note: Light reflection 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.