1. Built-in USB and SD reader function; 2. It can support MP3 music format;aux input;Guitar input 3. With previous,next and play / pause button for USB/Micro-SD; 4. With karaoke function and 1 microphone socket inputs; 5. With volume, bass, treble, echo and microphone volume button can separately control; 6. Compatible with PC/DVD/TV /Mobile phone and other audio input; 7. With remote control and Bluetooth function; 8.With 1 wireless microphone; 9.DC 12V battery input,with light and recording.