Fangrui Product Details 1. A2 Sound Card Mobile Computer Universal Live K Song Recording Equipment 2. Interface: Usb 3. Digital Dsp Chip 4. Support 48v Phantom Power Supply 5. Support Channel: Dual Channel 6. 3.5mm Microphone Interface 7. Upgrade Otg, One-click Dodge 8. Intelligent Noise Reduction, Built-in Amplifier Function 9. Wireless Bluetooth Accompaniment, Real-time Ear Return 10. A Variety Of Special Effects, Cool Lighting Effects 11. 12 Kinds Of Electronic Sound Effects, Special Effects Volume Adjustment 12. 1200mah Battery, Improve Live Broadcast Time 13. Input And Output Interface: Line Output (rear), Line Output (front), Microphone Input 14. Compatible With Computers, Mobile Phones, And Tablets, Supporting Most Mainstream Systems: Android, Win7, Win8, Win10, Mac, Etc. 15. Size: 22.7 X 14.5 X 2cm 16. Unit Weight: 0.9kg 17. Packing List: 18. -sound Card X 1 19. -live Line X 2 20. -charging Cable X 1 21. -instruction Manual X 1 22. -color Box X 1