Frequency Band UHF 565-584MHzType DynamicPolar Pattern Cardioid Frequency Response 50-18kHzSensitivity -50.60±1dB (at 1kHz)S/N Ratio More than 58dBPower Supply Microphone: 2 AA Batteries Receiver: 2 AAA BatteriesOutput Connection 1/4" TS connectorShipping Weight 0.6 kg