1050FT/ 320M WIRELESS RANGE: The Plug and Play DoorBelllwith a reliable wireless range of 1050 feet/320M and strong signal penetration, ensures you will never miss a visitor, even if you are a few rooms away or on another floorMULTIPLE WATERROOF PROTION:Transmitter Removable waterproof shell designIP65 dustproof and waterproof wireless doorbell chime. Withstands various harsh weather conditions, doorbell wireless can be used for homes, offices, hotels, garages, shops, apartments,villas, gardens,hospitals and schools5 LEVELS VOLUME 38 MELODIOUS CHIMES This wireless doorbell has 38 ringtones for you to choose from (including Christmas ringtones) and 5 levels of volume,adjustable volume from 20dB to 110dB, the volume is very loud and can be heard throughout the house.LEDindicator in the transmitters and receivers respectively, very useful for people with hearing impairment or people who want to keep the environment quiet.DOORBELL ALSO BE USED AS A PAGERAs a Doorbell, simply plug the receiver into a power outlet and the push button transmitter can glue it to the door with the supplied tape or fixed to the door with screws.This door bell chime can be installed on the frontdoor of your apartment, house, villa, flat, office, or workshop to welcome your guests. It can also be used as a pager, the transmitter comes with a lanyard which makes it suitable for children, nursery, or elderly care.AFTER-SALE SERVICE AND PACKAGING: The Doorbell operating between - 4 F and 140 F.If our Wireless Doorbell ringer wireless any problem occurs, please feel free to contact us. We provide 100% satisfaction and money back guarantee for every customer.[PackageIncludes:] 1xTransmitter Button, 2xReceiver, 1 x please press the doorbell indicator, 1 x double-sided adhesive, 2 x large screw, 1 x small screw, 2 x expansion tube, 1 x lanyard, 1 x standby battery (Have also a battery inside the doorbell