The Pyle PDWM2700 Dual Channel VHF Wireless Microphone system features one handheld microphone and one belt pack transmitter with headset mic. System includes two 9V batteries, AC/DC power adapter and 1/4'' audio connection cable. The rack mountable control receiver features RF, AF & power level indicators, rotary adjustable volume controls, 1/4'' mixed unbalanced output and XLR balanced output connector jack. Frequency Range: 160-270Mhz, Operating Range: Up to 150ft. Dimensions: 8.73''W x 5.51''D x 1.8''H.