Feature: 1, support MP3 or WMA or WAV 2, support Bluetooth 5.0 3, with digital tube display 4, support MMC or SD or 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 external audio input LINE IN (AUX) 8, support radio FM, receiving frequency band (87.5MHZ-108.0MHZ) 9, button: four-button multi-directional control, VOL- or AUTO or VOL and or MODE Operation details: 1. VOL-(previous song or volume reduction): In MP3 state, VOL-short press is the previous song, long press is for volume reduction in FM state, short press to adjust one station number in Bluetooth Short press under the function is the last song of Bluetooth, long press to decrease the volume. 2. AUTO (play or pause): In the MP3 state, AUTO is short-pressed to play or pause in the FM state, short press is play or pause, long press is for automatic receiving and saving in Bluetooth function, short press to play or time out. 3, VOL and (the next song or volume increase): In the MP3 state, VOL and short press for the next song, long press for the volume to increase short press in the FM state to adjust a station number under the Bluetooth function Short press for the next song of Bluetooth, long press for the volume to decrease. 4, MODE: switch between USB or SD or FM or AUX or Bluetooth function Package Includes: 1xMP3 Decoder Board Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.