Features Multipurpose - The audio interface is perfect for use as a karaoke mixer, Dj mixer, podcast mixer, music mixer, gaming mixer, and streaming mixer.Independent Volume Control - Each channel has its own separate volume control. Use the knob to adjust the output according to your needs.Wide Compatibility - Connect different audio sources, such as phones, computers, musical instruments, microphones, and more.Audio Mixer Specification:Channel No: 4Mono Channel: 2Stereo Channel: 2Effects: Repeat and DelayVoltage: 240VUSB Port & Bluetooth: YesBluetooth Version: 5Compatibility: Power amplifier and microphonePhantom Power: 48vPc Recording: Yes (Require cable not included)Frequency response: 20Hz-20KHz+3db2band EQInput Sensitivity: Mic: -60dBm Line: -20dB Eff Ret: -20dB Tape in: -20dBS/N Ratio: >70dBOutput voltage (Max): 4VTHD (1KHz Full Power): <0. 15%