A 4-channel audio mixer is a compact sound board used to connect, mix, and control up to four different audio sources like microphones and instruments.
Inputs: XLR and quarter-inch jacks for mics and instruments.Power: 48-volt phantom power for professional condenser microphones.Effects: Built-in digital signal processing (DSP) like reverb and delay.Connectivity: Bluetooth and USB ports for playing music or recording to a computer.