1. Bluetooth version 5.0 2. Support calling (press and hold the pause button to answer the call when there is an incoming call) 3. Supports recording. Recording only supports operation in TF mode or USB mode. (Press and hold the MODE button to start recording, press and hold the MODE button again to cancel recording and play the recording file; Exit recording mode by long pressing the pause button. When recording, a storage device such as a USB flash drive or TF card needs to be connected) 4. Support power-off memory 5. The power supply voltage supports DC 8v-24V and the current is between 1-4A. Can be directly connected to speakers, with amplifier and decoding functions. Supports song formats MP3/WMA/WAV/APE/FLAC Main functions: MP3/USB/TF/LINE IN/FM/BLUETOTH/remote control Power 120W, stereo 2 * 60W. Support folder selection for playback. When playing USB or TF, if there is a folder in the device and there are songs in the folder, pressing the up or down button twice can select the folder to play the song, and the screen will display F001-F00 accordingly? And so on. Color:Red Material:plastic Package Contents: 1 * Decoder board 1 * Remote control 4 * Cables