M15 mini wireless microphone
Sound delay: ≤30ms
Microphone: -32dB±2dB omnidirectional silicon microphone
Frequency response: 20Hz-20KHz
Signal-to-noise ratio: ≥65dB
Microphone battery: 90MAH(launcher)/160MAH(receiver)
Charging compartment battery: 1000MAH
Charging compartment battery charging time: about 2.5 hours
Wokring temperature-10℃-45℃
