M15 wireless microphone
Sound delay: ≤25ms
Microphone: -38dB±2dB omnidirectional silicon microphone
Frequency response: 20Hz-20KHz
Sampling rate: 44KHZ
Signal-to-noise ratio: ≥65dB
Microphone battery/life time: 210MAH/9H
Charging compartment battery: 1800MAH
Charging compartment battery charging time: about 2 hours
Wokring temperature-10℃-50℃
