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℃
SE83 wireless microphone Sound delay: ≤25ms Microphone: -38dB±2dB omnidirectional silicon microphone Frequency response: 100Hz-10KHz Signal-to-noise ratio: ≥60dB Microphone battery: 40MAH Charging compartment battery charging time: about 1.5 hours
M73 wireless microphone Sound delay: ≤20ms Microphone: -36dB±2dB omnidirectional silicon microphone Frequency response: 20Hz-20KHz Signal-to-noise ratio: ≥65dB Microphone battery: 80MAH(receiver) Charging compartment battery:400MAH
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