Wireless Doorbell 4 Receivers and 2 Push Buttons, Waterproof Wall Plug-in Door

Weatherproof Doorbell: IP55 Rated transmitter with waterproof ring structure, could withstand tough weather conditions (-4°F/140°F). Easy Installation : Wireless doorbells without any cables. Easily plug in the receivers and install the transmitters (battery included) by double-adhesive tape or screw.Installation can be completed in minutes and without the hassle of complicated wiring.