Battery: 1000 mAh lithium-ion rechargeable battery Sound Card Chip: Two noise-canceling DSP chips Sound Card Lithium Power: 1000 mAh (fully charged for 12 hours of continuous use) Function: 1. 12 types of electric sound, 8 types of sound effects, 6 types of effect modes. 2. Adjustment of reverberation size, adjustment of microphone volume, adjustment of treble bass, recording volume control, music volume control, monitoring volume control (earphone function). 3. Support for mobile phone and computer use, support for single headset use. 4. 7 types of connection methods: one mobile phone K song live, dual mobile phone live, phone live, synchronous live with mobile phone and computer, one computer live, computer accompaniment mobile phone live, instrument input mobile phone live. 5. Compact structure and durable metal casing can be used in various places for your convenience. 6. Made of high-quality all-aluminum material with a slim and design. 7. Built-in lithium battery, you can continue to broadcast live for more than 8-12 hours. 8. Support for dual mobile phone use 9. High compatibility, except for diaphragm microphone and USB port microphone, all 3.5mm condenser microphones and dynamic microphones can work with this sound card Color: black Material: metal Size: 125 x 105 x 25 mm Package Contents: 1 x Sound Card Unit 3 x Cables 1 x USB Cable 1 x User Manual 1 x Color Box Packaging 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 to be slightly different from the real item. The allowed measurement error is +/- 1-3 cm.