This phantom power is a must for condenser microphones.Features:Provides 48V DC phantom power for condenser mic.Balance mic inputs and outputs， minimize noise.On/off power switch and LED indicator for ease of operation.Durable and compact， all-metal housing.Specifications:Material: MetalAdapter input: 100-120V 50-60HzAdapter output: 18V 600mAProduct size: 9 * 8.5 * 4.5cm / 3.5 * 3.3 * 1.8inProduct weight: 208g / 7.3ozPackage size: 19 * 10 * 6cm / 7.5 * 3.9 * 2.4inPackage weight: 606g / 1.34LbPackage List:1 * 48V Phantom Power1 * Adapter (US plug)