Each system includes everything a working musician or band needs to receive consistent personal monitor mixes.Designed for performers who are tired of the limits of floor wedges, the PSM 400 offers hands-on control and freedom to musicians who have a limited budget for gear. With a wide range of available options - from complete Wireless and Wired systems to individual components - there is a PSM 400 that is right, rehearsal through performance, for almost everyone who performs live music.FEATURES:[ Built-in audio limiter [ External power supply [ Remotable/combinable antennas [ 1/2 rack space [ Operating Controls: Earphone volume knob, Frequency select [ LED Indicators: 4-segment input level, Transmission Frequency [ Inputs: Two 1/4"" TRS line level[ Outputs: Two 1/4"" TRS loop outs, Local earphone monitor [ Net Weight: 907 g [ Overall Dimensions: 43.6 mm X 219.2 mm X 136.5 mm ";