EPXCM/X 4600 ODM/OEM Professional 4 channel handheld wireless moving coil microphone For Church Home Karaoke Meeting

Comprehensive parameters:
Operating frequency: UHF 640-670MHz
Modulation mode: FM
Channel interval: 500KHz
Frequency stability: ± 0.001%
Frequency dynamic range: ≥ 100dB
Maximum frequency offset: ± 25kHz
Frequency response: 40Hz-20KHz
Comprehensive signal-to-noise ratio: > 105dB
Comprehensive distortion: < 0.5% @ 1kHz
Working distance: about 100m (without interference in open land)
Working environment temperature: - 10 ℃ - 50 ℃