Microphone unit:  Dynamic
 Directivity:  Unidirectional
 Channel group:  A or B
 Carrier Frequency Range:  556.71 MHz-575.98 MHz (Transmitter: A )

576.39 MHz-595.66MHz (Transmitter: B )
 Channels:  48
 RF output power:  ≤10 mW
 Input frequency range:  20Hz-20KHz
 Distortion:  0.5% or less
 Signal-to-noise ratio:  80 dB
 Dimensions:  5.3×5.3×25.6cm
 Weight:  252g (without batteries)