Pyle PDWM4310 Rack Mount Wireless Microphone System with 4-Channel, 2 Wireless Microphones, 2 Body-Packs and 2 Headsets VHF High-Band Receiver System, Quad Fixed Frequency Channel Design (Channel 1, 2, 3, 4) Broad Frequency Response Range & Low Distortion, 150' Feet Wireless Communication Range Integrated Triple Noise Filtration System, High Signal/Noise Ratio Performance, LED Indicators LCD Digital Display with Channel & Frequency Readout, Independent Adjustable Volume Controls Rack Mountable System, 1/4'' XLR Unbalanced Audio Out, Mixed Balanced Output Jack Connectors