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