SM-611

receiver:
Channel frequency: 170-270MHZ
Frequency steadying: ±0. 005%
Sensitivity: -95dBm(S/N: 12dB)
RF image rejection: -75dB
Neighboring channel/interference: > 25dB
Audio dynamic range: 95dB
Frequency response: 40Hz-20KHz±3dB
S/N ratio: > 80dB
T. H. D: < 1%
Cover range: > 50m

Power source: AC 220V/50Hz
Transmitter:
Carrier frequency: 170-270MHZ
Frequency stability: ±0. 002%
RF power output: > 13dBm
Harmonic at higher degree: < 60dB
Modulation degree: > 30Khz
Modulation pattern: FM
Power current: < 25mA
Battery type: DC 9V