SE83 Wireless Microphone

Sound delay: ≤25ms
Microphone: -38dB±2dB omnidirectional silicon microphone
Frequency response: 50Hz-20KHz
Sampling rate: 48KHZ
Signal-to-noise ratio: ≥75dB

Microphone battery/life time: 200MAH/6H
Charging compartment battery: 400MAH
Charging compartment battery charging time: about 2 hours
Wokring temperature-10℃-45℃