Green Lion 3-in-1 Dual Wireless Microphone Black

Transmission Distance: In a barrier-free environment, it covers a range of 20 to 30 meters. Frequency Response Range: The microphone captures audio frequencies from 20Hz to 20kHz. Battery Capacity (Receiver): The receiver has an 80mAh battery capacity. Battery Capacity (Mic): Each microphone has a 60mAh battery capacity. Signal-to-Noise Ratio: The microphone’s signal-to-noise ratio is 64dBm.