I. Main Features 1, dual decoding support MP3 /WMA / WAV / FLAC / APE format music; 2、Support wired wireless microphone; 3, with recording function, recording microphone sound; 4, with digital tube display; 5, support TF card, support USB (U disk); 6, Power failure memory function; 7, support 5-10 meters distance infrared remote control operation; 8, support for external audio input LINE IN; 9, support for radio FM, retrieval band (87.5MHZ-108.0MHZ); 10, key: six keys, MODE / PREV / SCAN / NEXT / REC / MIC; 11. amplifier power: 2x10W, rechargeable lithium battery 7.4V/DC 9V; 12. Charging voltage DC 9V; 13. With reverb, bass and treble adjustment knob, with microphone volume knob; Second, the recording function description 1, short press REC button to start recording, and again short press REC button to cancel the recording function; 2、Long press the SCAN button to play the recording file; 3, recording than need to connect a storage device, such as: U disk or TF card; Third, the key operation details 1, MODE button: in USB / SD / FM / audio input / Bluetooth function between the switch in turn; 2, PREV button (previous song / volume down): in the MP3 state PREV short press for the previous song, long press for the volume down; in the FM state short press for up a station number; in the Bluetooth function short press for Bluetooth previous song, long press for the volume down. 3, SCAN button (play / pause / FM retrieval): in the MP3 state SCAN short press to play / pause; in the FM state short press to play / pause, long press to automatically receive and store the station; in the Bluetooth function short press to play / pause. 4, NEXT button (the next song / volume up): in the MP3 state NEXT short press for the next song, long press for the volume up; in the FM state short press for down a station number; in the bluetooth function short press for the bluetooth next song, long press for the volume down. 5, REC button: short press the REC button to start recording, and then short press the REC button to cancel the recording function; 6、MIC button: microphone mode priority button.