Wireless Doorbell with 4 Receivers 2 Buttons,Ip55 Waterproof Doorbell,1300 FT/40
Included Components 1 mini screwdriver,3 double-sided adhesive stickers,1 English instruction manual, 2 battery-powered button (batteries included), 2 door plate, 4 plug-in receivers, 4 screws. 【Easy Installation】It can be used right out of the box.