BNK BK901 VHF Dual Wireless Microphone

Frequency range: vhf 210-290 mhz transistor modulation mode: fm; squelch control: noise lock frequency deviation: +/-18khz; frequency stability: +/- 5khz frequency response: 50hz-17khz dynamic range: > 90db; f/n ratio: > 90db receiving power: 220v/50hz; s/n ratio: 70 db total harmonic distortion: -85db