Expandable:PHYSEN Model X5 wireless doorbell is simple and stylish.2 remote push button and 3 plug-in receivers kit is very popular for department,large office,building of multifloor and etc.
Distance:Doorbell can work within 900 feet in open area.Generally,it can work within 200-700 feet through the metal security doors and walls depending on the specific using environment.
Waterproof:Remote push button is waterproof can accept for indoor or outdoor using environment,No matter is rain or snow weather.
Doorbell Chime:Adjustable volume levels from 25dB to 110dB and over 50 different ring tones with backward button and forward button for you easily to select the favorite music
Easy Installation:Just plug the receiver into electrical outlet and use double-side adhesive tape at the back of the transmitter,also you can use the screw to install it.CE, FCC, RoHS certified