BNK Wireless Microphone. BK901

Bnk 901 Frequency response :50Hz-17KHz 2. Frequency range: VHF210-290MHz Transistor 3. Frequency stability:±5KHz 4. Modulation mode:VHF 5. Dynamic range:>90dB 6. Temperature range:-30°C~60°C 7. Receiver power: 240V/50Hz 8, Transmit microphone power: 9v 9. T.H.D:<1%. 10. S/N Ratio: 90dB( signal >50dB) 11. F/N Ratio:>90dB 12. Distance range:120+ meters 13. Hand-microphone Metirail: plastic 14. Panel: High grange aluminum alloy