It is designed for both professional and consumer video camera

Internal Microphone Omni-directional Condenser Microphone
Frequency Preparation PLL Synthesized Control
Carrier Frequency Range 502~960 MHz
RF Outputs 10mW
Stability ±10kHz
Frequency Deviation ±48kHz
LED Display Channel
Controls Power On/Off, Channel selection,
Volume control
Spurious Emissions
Audio Frequency Response 40~18,000 Hz
Microphone input connector 1/8” Mono Phone Jack
Battery life 14 hours typical
Battery Lithium cell (3.7V, 1300mAh)
Dimension(mm) 54mm(W)* 17mm(D)* 99mm(H)