建基五金实业有限公司
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FREQUENCY: 433.92Mhz+/-75KHz;
POWER SUPPLY(RECEIVER): AC 110V-240V;
POWER SUPPLY(TRANSMITTER): 12V23A;
WORKING POWER CONSUMPTION: <0.5W;
TRANSMIT POWER: <10mW;
OPERATING RANGE: 150 METERS(OPEN AREA);
VOLUME OF SOUND: 25-85dB;
SOUND OPTIONS: 38 POLYPHONIC MELODIES