DSP audio chip allows you to intelligently adjust the sound section to make the audio signal in the sound card clearer and stable, and the sound output is more pleasant Built-in professional lithium battery 1000 mAh, which can be used continuously for 4-8 hours to make your live broadcast unimpeded Plug and play, no debugging, one-click effect Intelligent and compatible with many platforms Bluetooth 4.0 protocol Colour: black Material: ABS Size: 18 x 12 x 3cm Package Contents: 1 x sound card 1 x live line 1 x accompaniment line 1 x charging cable Only the above package content, other products are not included. Note: Light 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.