Main function: MP3/USB/TF/LINE IN/FM/BLUETOOTH/remote control Supports calls (long press the pause button to answer the call when there is an incoming call) Supports recording in TF or USB mode (long press the MODE button to start recording, long press again to stop and save; exit recording mode by long pressing the pause button; requires a U disk or TF card for storage); supports power-off memory Can be directly connected to speakers with built-in amplifier and decoding functions Supports audio formats: MP3, WMA, WAV, APE, FLAC Bluetooth version: 5.0 Power supply voltage: DC 6V12V Current: 13A Power output: 50W True stereo: 2 x 25W Color: Black Material: ABS Size: 92 x 41mm Package includes: 1 x decoder board Note: Other items not included. Due to lighting and display differences, the item color may vary slightly from the images. Measurement error allowed within +/- 13cm.