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 between -30C and 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 set in 4 levels.Wireless front doorbell: 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 InformationChalemain Radio Door BellWireless Doorbell, Wireless Doorbell for Outdoor and IndoorThe radio doorbell has a working area of 300m / 1000ft, ensuring you never miss a visit or delivery.300M Wide Radio RangeThe range between transmitter and receiver is up to 300 meters! Sufficient radio range allows the radio Bell to be installed anywhere in your home.The wireless doorbell can be expanded with additional transmitters and receivers (same model).Bad weather conditions easily survivedIP44 waterproof and dustproof, suitable for indoor and outdoor use. The wireless doorbell can be used in a 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 from36 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 signalThe wireless doorbell is loud enough and there is a LED signal when the bell rings, which is convenient for the hearing impaired.Package Contents1x Transmitter1x Receiver1x 12V A23 alkaline battery for transmitter1x Double-sided adhesive tape1x Small screwdriver1x Instruction manualWaterproof radio bellwith a battery life of 3 years, suitable for indoor and outdoor useDimension of radio doorbell transmitter: 7.8 cm x 4.6 cm x 2 cmReceiver: 8.0 cm x 7.5 cm x 2.3 cmSpecificationsRingtones: 36Waterproof (transmitter): IP44Operating temperature: -22 C ~ 65 CVolume: adjustable in 4 levels (25db ~ 85db)Input voltage: AC110-240V 50 / 60HZ,"