Features: TF card slot: connect to TF memory card (maximum support 32GB) AUX interface: audio input interface LCD screen: synchronized lyrics display USB interface: connect to U disk (maximum support 32GB) IR: infrared receiver module MIC: Support call and recording function REC: Press the REC button to start recording, press the REC button again to cancel the recording function and play the recording file when recording, it is more necessary to connect a storage device, such as a U disk or TF card REPEAT: Press the single cycle function once, and press it again to cancel the single cycle and play in sequence PREV or VOL-: Short press is to select the previous song long press is to decrease the volume PLAY or PAUSE: Short press is to switch between pause and play long press is to radio FM automatic station NEXT or VOLand: Short press is to select the next song long press is to increase the volume MODE: Switch between USB or TF or FM or AUX or BLUETOOTH Package includes: 1xWireless Bluetooth 5.0 Decoder 3xCable 1xRemote control