1. Automatically support USB / TF / Bluetooth / FM / AUX switching. Prompt and convert to cable (signal sound or English voice optional) 2. Support music in MP3 / WMA / WAV format. MP3 songs 32-320kbps, WAV / WMA is 1411kbps or below 3. Support USB / card switching, music, next song, volume control, EQ, play / pause, stop, mute, shutdown, directly select songs. 4. Support Bluetooth previous song, next song, volume control, play / pause, mute. 5. Support power and storage function: turn off the storage before playing the song, and can store the volume to the current position. Breakpoint memory (in playback mode The first time you restore the U disk or TF card will play the breakpoint memory for the first time when the power is cut off after about three seconds) Bluetooth version is version 5.0 Music format: MP3 / WMA / WAV / FLAC / APE lossless format music Power: 2 x (15) W, connect 2 (15) W speakers Radio FM frequency: 87.5-107.5 MHZ Support function introduction: support MP3 / USB / TF / LINE IN / FM / BLUETOOTH / remote control / DC: 12V External Memory: Yes Audio Format Support: MP3, WAV Balanced Out: No Have Speakers or not: No Have Amplifier:Yes Battery Specification: External Power Function: FM Radio Function: Bluetooth Bluetooth: Yes Model Number: MP3 Decoder Board WIFI: No Style: Car MP3 Operation Mode: Contact Tone Body Material: Plastic Package: No Supports FM: Yes Screen: Yes Storage Type: Flash Memory colour:black Material:ABS size:108 x 25MM Package Contents: 2 x MP3 Decoder 2 x Remote Controller 8 x Cable