Battery: 1000 mAh rechargeable lithium-ion battery Sound Card Chip: Dual noise-canceling DSP chips Sound Card Lithium Power: 1000 mAh (fully charged for 12 hours of continuous use) Function: 1. 12 types of electric sounds, 8 types of sound effects, 6 types of effect modes. 2. Reverberation size adjustment, microphone volume adjustment, treble bass adjustment, recording volume control, music volume control, monitoring volume control (headphone function). 3. Supports mobile phone and computer use, supports single headset use. 4. 7 connection methods: single mobile phone K song live, dual mobile phone live, phone live, synchronous live with mobile phone and computer, single computer live, computer accompaniment mobile phone live, instrument input mobile phone live. 5. Compact structure and durable metal casing can be used in various locations for your convenience. 6. Made of high-quality all-aluminum material with a slim design. 7. Built-in lithium battery, allowing for over 8-12 hours of continuous live broadcasting. 8. Supports dual mobile phone usage. 9. High compatibility: Except for diaphragm microphones and USB port microphones, all 3.5mm condenser 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 contents are included; other products are not. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.