- 12V 23A ALK battery for the push button remote is INCLUDED. Wireless doorbell operating at 600~750 feet in open air.
- Over 50 different chimes. 4 levels of adjustable ringing volume from 30~110 dB
- No batteries required for the receiver. Simply plug it into a power supply (120V US Standard)
- Each receiver works with up to 10 transmitters for added security and convenience
- Screws and double-sided adhesive tapes included for easy installation of the transmitter
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