PylePro Model : PDWM21002-Ch. VHF Wireless Microphone SystemDual Channel VHF Wireless Microphone System with (2) Handheld Mics System Features: 2-Channel Wireless Microphone SystemVHF Audio Signal Transmission DesignMixed 1/4'' Output ConnectorDual Telescoping Receiver AntennasIndependent Channel Rotary Volume ControlsMicrophone Feature ON/OFF Broadcasting SwitchAF/RF LED Indicator LightsWhat's in the Box: Receiver Base(2) Wireless Microphones1/4'' Audio Connection CableWall Power AdapterTechnical Specs: Dynamic Range: 80dBTotal Harmonic Distortion: 0. 5%Operation Range: 50-150 MetersSignal to Noise Ratio: 80dBBattery Operated Microphones, Require (1) x '9V' BatteryReceiver Power Supply: AC 110V Microphone Dimensions: 9. 6'' x 1. 9'' x 1. 3''Receiver Dimensions: 1. 0'' x 7. 9'' x 11. 4''Using manufacturing breakthroughs pioneered by Pyle, the PDWM2100 system redefines the price point for quality microphones. Class A solid state electronics are engineered for low noise, distortion and coloration. You will be amazed at how much microphone PDWM2100 gives you for the money. Pyle has been in business for over 35 years, and their manufacturing experience and expertise is easy to see - and hear.