Elderly or Patient Care: The push button transmitter can be used for emergency call for the eldely or patient.
It is battery powered, easy to access for them too.
or ning Call for Children: Hassled to get the children up in the morning for school?
Don\'t worry, just press the transmitter at your home, your kids will wake up on time, no more late for school.
Perfect for villas, shops, offices: With our wireless doorbell, you ll never miss a visitor.
Voltage of Plug-In Smart Receiver: AC 110V ~ AC 220V 50Hz/60Hz
Battery in Transmitter: 12V 23A Alkaline Battery
Power Consumption (Transmitter): < 10mW
Selectable Ring Tone: 52 Options
Volume Range: 4 Levels (up to 110 dB)
Expandable to Multiple Smart Receiver or Transmitter: Up to 50
Working Frequency: 433.92 MHz±280KHz
Working Temperature: -30℃~70℃