Specification of hand-held microphone•Capsule ~ Dynamic•Polar pattern ~ Cardioid•Frequency range ~ 2.4G VHF•Radio frequency bandwidth ~ 60MHz•Transmission power ~ 10mw•Frequency response ~ 40Hz - 18KHz•Dynamic range ~ 96db•Harmonic radiation ~ <- 50 DBC•The degree of distortion of~ <0.1%•The feeding mode ~ 18650 lithium battery 3.7v