1. Dual decoding, compatible with lossless MP3/WMA/WAV/FLAC/APE formats. 2. Digital display, Bluetooth 5.0 with on/off switch. 3. Support MMC/Memory/MMA card and USB port (flash drive). 4. Support FM radio, wired reception frequency range (87.5MHz-108MHz). 5. Power off function, 10-meter infrared remote control and LINE IN external audio input. 6. Buttons: Four-button multi-directional control: PREVIOUS/VOLUME-, PLAY/PAUSE, NEXT/VOLUME+, MODE. Specifications: Item Type: Bluetooth Decoder Board Material: ABS Color: Black Weight: Approx. 42g/1.5oz Battery Type: CR2025 (Remote control batteries not included) Button Operation 1. PREVIOUS/VOLUME-: In USB/Memory Card/Bluetooth mode, short press to skip to the previous track and adjust the volume. Long press to decrease the volume. In FM mode, short press to skip to the previous station. 2. PLAY/PAUSE: In USB/Memory Card/Bluetooth mode, press the button to play/pause. In FM mode, short press to complete station search and pairing. 3. NEXT/VOLUME+: In USB/Memory Card/Bluetooth mode, press the button to return to the previous track and adjust the volume. In FM mode, a short press will skip to the next station. 4. MODE: The switching order is: USB Memory Card FM Audio Input Bluetooth. Description of the remote control buttons: 1. POWER ON/OFF: The STANDBY button cannot be turned on or off. 2. MODE: The switching order is: USB Memory Card FM Audio Input Bluetooth. 3. PREVIOUS: In USB/Memory Card/Bluetooth mode, press this button to return to the previous track. In USB/Memory Card/Bluetooth mode, press and hold it to fast forward. In FM mode, a short press skips to the previous station and a long press seeks to the next station. 4. NEXT: In USB/Memory Card/Bluetooth mode, press the NEXT button to skip to a track. In USB/Memory Card/Bluetooth mode, press and hold it to fast forward. In FM mode, a short press skips to the previous station and a long press seeks to the next station. 5. VOL+: Short/long press to increase the volume. 6. VOL-: Short/long press to decrease the volume. 7. REP: During USB/SD playback, switches between single repeat and loop playback. Loop playback of all loops. 8. Press MUTE to cancel. 9. EQ: Sound field modes: NORMAL BAS POP ROC JAZZ CLA CUT NORMA. 10. PLAY/PAUSE: Play/pause in USB/SD card/Bluetooth mode; long press in FM mode to search all stations and coexist. 11. 0-9: Directly enter the selected number 10 times or more in USB/SD card mode; press directly in FM mode to directly enter the radio frequency and station number. Package Contents: 1 x Bluetooth module, 1 x remote control, 3 x pin cables.