ZTB-252A
Product Feature
Receiver power supply: AC230V
Transmitter battery: 1*3V, CR2032 (included)
Using high frequency transmit technology and innovative function of same frequency with different code, one doorbell has one code to avoid interference
Radio frequency: 433.92MHz
18 melodies
Volume adjustment
With LED flashing light
Transmitter is IP44
Operating range up to 100/200 meters in the open area
Different color for choosen: black, white
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