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Model:U14-N1 DC model
Digital coding wireless doorbell,High interference and easy installation.
Lot colors can be chosen for the receiver and switch.
Manual coding function,you can set as many as you want switch,
and you can set the different songs as you want for each push button.
The switch with waterproof.lp44
Flashlight LED in the receiver,more beautiful and suitable for the deaf person also.
38 polyphonic music selectable.
3-Level volume control
“SMT”technology,range up to 150 meters in the open place.
DC Receiver:2X1.5V AA batteries(not included)
Switch:1X12V 23A(included)
2012 Innovation model SMT Technoledgy suitlble deaf person wireless digittal doorbell