Shure PSM 400 Wireless Personal Performance Pack, P4MTRE3   PSM®400 Wireless and Wired systems make professional quality personal monitoring available to more performers than ever before. 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. P4MTRE3 Wireless Personal Monitor System includes P4M Personal Monitor Mixer, P4T Wireless Transmitter, P4R Wireless Receiver and gray SCL3 Sound Isolating Earphones P4M Personal Monitor Mixer A highly versatile stereo mic/line mixer for installed sound system applications and personal monitoring that provides easy access and control of up to four signals. Two additional auxiliary inputs can be used to add channels from other sources. 1/2 rack Four level controls Four balance controls Four XLR - 1/4" mic/line inputs Two 1/4" TRS aux inputs Four split controls Two XLR = 1/4" TRS mix outputs External power supply P4T Wireless Transmitter Key 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 P4R Wireless Bodypack Receiver Key Features High-impact plastic chassis Frequency locator Operating Controls Operating mode (Stereo, Mono, MixMode) Volume knob Balance Defeatable limiter High-frequency boost Frequency select Backlit LCD Indicators RF reception Battery life Operating mode Frequency SCL3 Sound Isolating Earphones Single WideBand Microdrivers with incredible isolation for detailed tone across the frequency range. Specifications Frequency Range: 25Hz – 18.5kHz Sensitivity (at 1 kHz): 115 dB SPL/mW Impedance (at 1 kHz) 26 ohms Weight: 28g (.9oz) Output Connector: Gold-plated stereo, 3.5 mm (1/8-inch) phone plug Cable Length: 1.57 m (62 inches)