Function Description: 1. Main functions MP3/USB/TF/LINE IN/FM/BLUETOOTH/remote control 2. The overall power is 100W, with 50W for each of the two channels 11. Support folder selection and playback. Press +to next folder Press - to previous folder 3. Support calls (long press the pause button to answer calls).Support power outage memory 4. Support recording. Recording only supports TF mode or USB mode operation.(Long press and hold the MODE button to start recording, then press and hold the MODE button again to cancel recording and play the recording file; exit recording mode, long press and hold the pause button to exit. When recording, a storage device needs to be connected, such as a USB flash drive or TF card; ) 5. It can be directly connected to the speaker, with power amplifier and decoding functions. Support song formats: MP3/WAV/APE/FLAC power supply voltage supports: DC 8V-24V current: 1-4A amplification chip: TPA3116 Bluetooth version: 5.0 Material: plastic+metal colour: Black Package Contents: 1 x Decoder Board 1 x remote control 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.