1. Product size: It's the same size as a mobile phone, it's easy to carry, and it's easier to broadcast live. 2. Support Bluetooth transmission of accompaniment, free from the shackles of wires 3. Upgraded version of DSP audio processor, audio processing is faster and more stable, the sound quality is clearer, and there is no lag. 4. Support dual mobile phone use. 5. Built-in lithium battery, you can continue to live to reach more than 5-8hours. A of sound modes and adjustments, professional control, comfortable feel. Highly compatibility, except large diaphragm microphone and USB port microphone, all 3.5mm condenser microphone, and dynamic microphone can work with this sound card. colour: black Material: metal + plastic Size: 127x106x20mm Package Contents: 1 x sound card device set 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.