1. 4 channels (2 mono + 1 stereo).       

2. USB power supply (DC 5V): computer/power adapter/mobile power

3. Built-in sound card: USB computer is directly connected without a driver.

4. Bluetooth connection.

5. USB playback: MP3, WAV, lossless APE, FLAC.

6. Each mono channel has independent +48V phantom power

7. Each mono channel has an effect switch.

8. Record: Via USB or PC.

9. Effect: delay + repeat.

10. Equipped with two wireless microphones, built-in receiver

 11. Microphone frequency: 740-750HMZ