1. Dual decoding supports MP3 / WMA / WAV / FLAC / APE lossless music format; 2. Microphone interface; 3. Support Bluetooth function, Bluetooth version 5.0; 4. Support recording function; 5. 12V power supply; Color digital screen display; Support USB interface (U disk); Power-off memory function; Support 10-meter infrared remote control operation; Support external audio source input LINE IN; Support FM radio, search frequency band (87.5MHZ-108.0MHZ); Detailed button operation 1. VOL+: Short press to select the next song; long press to increase the volume, double-click to switch to the next folder; 2. PAUSE: Short press switches between pause and play; long press switches to FM radio; 3. VOL-button: Short press selects the previous song; long press decreases the volume, double-click switches to the previous folder; 4. REPEAT: Press once single song loop function, press again to cancel single song loop, and play in sequence; 5. EQ: Sound field mode, test 6 sound qualities; (classical) (jazz) (rock) (heavy bass) (pop) (normal) 6. MODE button: Switch between USB / TF / FM / audio input / Bluetooth functions in sequence; long press to start recording, press the button again to cancel the recording function and play the recording file; only internal recording (can only record audio input, radio FM, Bluetooth); when recording, you need to connect a storage device, such as: U disk or TF card; Colour: Material:plastic Package Contents: 1 x Audio Codec 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.