[USB 48V] It delivers reliable 48V Phantom power directly from USB cable for condenser microphones, transfer sound signal to sound card accurately and completely. [1 CHANNEL] The condenser microphone equipment features a single channel unit with balanced mic input and output that can be connected in line with your mic and mixer. [WITH XLR 3 PIN CABLE ] Universal XLR input and output, compatible with a variety of microphone music recording equipment; XLR 3 pin cable with high quality XLR male and female connectors is included. [ALUMINUM ALLOY MATERIAL] The phantom power supply is made of stable and reliable aluminum alloy material. The structure is sturdy and durable for long time use. [UPGRADE DESIGN] Independent power on off and indicator light design, more convenient to operate and use.