Long range: Sufficient radio range (280m/1000ft in 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 good time. never miss a visitor! Waterproof and weatherproof: With IP44 waterproof technology and an operating temperature between -30C and 70C, the wireless doorbell is also suitable for outdoor use. It works perfectly, for example in rain, snow or subzero temperatures. Easy installation: Simply plug the receiver into an outlet and install the push button to the wall or door frame using the supplied 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. adjustable volume from 25db to 85db can be set in 4 levels. Wireless front door bell: 1 receiver and 1 transmitter, no batteries required and no annoying cables. This wireless doorbell can be expanded as needed with additional receivers and transmitters (same model). Product information Chalemain Bell radio entry door Wireless doorbell, wireless doorbell for outdoors and indoors 'interior The radio doorbell has a working space of 300 m / 1000 feet, ensuring 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 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 for set a favorite song as ringtone. The Bell radio front door has 4 adjustable volume levels (25db-85db) to meet your different requirements. LED signal The wireless doorbell is quite loud and there is an LED signal when the bell rings, which is convenient for the hearing impaired. Delivery 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 3 years battery life, 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 Operating temperature: -22C ~ 65C Volume: adjustable in 4 levels (25db ~ 85db) Input voltage: AC110-240V 50/60HZ