Long Range: Sufficient radio range (280m/1000ft in open area) is perfect for your home, the signal can penetrate obstacles very well. Whether you're cooking in the kitchen or weeding in the garden, this house bell will let you know in a timely manner. never miss a visitor! Waterproof and weatherproof: With IP44 waterproof technology and an operating temperature between -30°C and 70°C, the wireless doorbell is also suitable for outdoor use. Such as. They work great in rain, snow or sub-zero temperatures. Easy Installation: Simply plug the receiver into a wall outlet and install the push button to the wall or door frame using the supplied 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. adjustable volume from 25db to 85db can be set in 4 levels Radio doorbell for indoor and outdoor use: 2 receivers and 1 transmitter, no batteries required and no annoying cables.