MAXTOMARS&reg; P4 2-Channel 48V Phantom Power Supply for Condenser Microphones 2 channels 48V DC phantom power supply for condenser microphones Dual balanced XLR microphone inputs and outputs to connect in-line with your microphones and mixer 2 independent channels design, Balanced XLR Inputs / Balanced XLR Outputs Low noise full-frequency response On / Off power switch with Indicator light. Durable, compact, all-metal housing