Long Range: Sufficient radio range (280m/1000ft in the open area) is perfect for your home, the signal can penetrate obstacles very well. Whether you are cooking in the kitchen or weeding in the garden, this wireless radio doorbell will inform you in time. Never miss a visitor! Waterproof and Weatherproof: Thanks to IP44 waterproof technology and an operating temperature of -30C to 70C, the wireless doorbell is also suitable for outdoor use. It works perfectly, for example in rain, snow or sub-zero temperatures. Easy Installation: Simply plug the receiver into a socket and install the push button on the wall or door frame using the provided adhesive tape or screws. The blue LED flashes when someone visits. Different tones and volume: You can choose from 36 different ringtones, from classic to well-known melodies. The adjustable volume from 25db to 85db can be adjusted in 4 levels. Wireless doorbell: 1 receiver and 1 transmitter, no batteries needed and no annoying cables. This wireless doorbell can be expanded as needed with additional receivers and transmitters (same model). Product Information Chalemain Bell Radio Doorbell Wireless Doorbell, Wireless Doorbell for Outdoor and Indoor The radio doorbell has a working area of 300m / 1000ft, ensuring that you never miss a visit or delivery. 300M Wide Radio Range The range between the transmitter and receiver can reach 300 meters! Sufficient radio range allows the Bell radio to be installed anywhere in your home. The wireless doorbell can be expanded with additional transmitters and receivers (same model). Bad weather conditions easily survived IP44 waterproof and dustproof, suitable for indoor and outdoor use. The wireless doorbell can be used in the range of -20 -65 . You don't have to worry about the sun, rain, snow or other extreme weather conditions like frost. 36 ringtones and 4 volumes to choose from 36 melodies ensure you have a wide choice to set a favorite song as your ringtone. The radio doorbell has 4 adjustable volume levels (25db-85db) to meet your different requirements. LED signal The wireless doorbell is loud enough and there is a LED signal when the bell rings, which is convenient for the hearing impaired. Package Contents 1x transmitter 1x receiver 1x 12V A23 alkaline battery for transmitter 1x double-sided adhesive tape 1x small screwdriver 1x instruction manual Waterproof radio bell with a battery life of 3 years, suitable for indoor and outdoor use. Radio doorbell dimension transmitter: 7.8 cm x 4.6 cm x 2 cm Receiver: 8.0 cm x 7.5 cm x 2.3 cm Specifications Ringtones: 36 waterproof (transmitter): IP44 Working temperature: -22 C ~ 65 C Volume: adjustable in 4 levels (25db ~ 85db) Input voltage: AC110-240V 50 / 60HZ Sold by the store