A2 Sound Card Mobile Computer Universal Live K Song Recording Equipment 1. Interface: USB 2. Digital DSP chip 3. Support 48V phantom power supply 4. Support channel: dual channel 5. 3.5mm microphone interface 6. Upgrade OTG, one-click dodge 7. Intelligent noise reduction, built-in amplifier function 8. Wireless Bluetooth accompaniment, real-time ear return 9. A variety of special effects, cool lighting effects 10. 12 kinds of electronic sound effects, special effects volume adjustment 11. 1200mAh battery, improve live broadcast time 12. Input and output interface: line output (rear), line output (front), microphone input 13. Compatible with computers, mobile phones, and tablets, supporting most mainstream systems: Android, Win7, Win8, Win10, MAC, etc. 14. Size: 22.7 x 14.5 x 2cm 15. Unit weight: 0.9kg Packing list: -Sound card x 1 -Live line x 2 -Charging cable x 1 -Instruction manual x 1 -Color box x 1