The Pyle PDWM4300 VHF Wireless Microphone system features two handheld microphones and two belt pack transmitter with lavalier and headset mics. The system includes four 9V batteries, a 110/220V power supply, and 1/4'' audio connection cable. The control receiver features a power on/standby/off switch, RF and AF level indicators, individual volume controls, 1/4'' individual and mixed output jacks and measures 16.5? x 8.2? x 1.8?. It delivers a frequency range of 160 - 270Mhz and an operating range of up to 240?.