Description: 【Ultra-long Operating Range】Featured with strong wireless signals to hide your home or business in an open space, this door bell makes sure that you simply will never miss any visitors, and therefore the unique frequency removes the fear of interfering together with your neighbors’ bells. 【Multiple Chimes & Easily Choose】36 different chimes and tunes to settle on , chimes are loud enough to be heard throughout the house. Memory function is out there for sound and chime selection. 【Easy Installation】Just plug the receiver into a socket and fasten the transmitter on wall or door frame with tape or screws included. 【Waterproof】The weather-proof bell setting on front/back door can get up to rain, snow and temperature changes, against rainy days or cold winter. The flashing light indicator that provides you a visible sort of notification, a superb feature for the hearing impaired. Specifications: Colour: White Material: Plastic Size: 8.1*8.1*2.1CM & 7.4*3.3*1.9CM Type: Door Chime Model: Wireless Door bell Wired/Wireless: Wireless Style: Contemporary Connectivity: Wireless Chime Type: Digital Batteries Required: Yes Ringtones: 36 polyphonic ringtones Transmitter power: 1 x 12V 23A battery（Not included） Suitable For: Home, School, Shop Sub-type: Doorbells Features: Lighted, Melody/Tune, Waterproof Room: Any Room, Basement, Bathroom, Bedroom, Caravan, Childrens Room, Conservatory, Dining Room, Foyer, Garage Package Included: 1 x Push Button (Transmitter) 1 x Plug-in Chime (Receiver) 1 x 12V A23 Alkaline battery for transmitter（Not included） 1 x Flat-head screwdriver 1 x User Manual 1 x Double-sided Tape