Long Range: Sufficient radio range (280m/1000ft in an open area) is perfect for your home, and the signal can penetrate obstacles well. Whether you are cooking in the kitchen or weeding the garden, this wireless doorbell will keep you informed. Don't miss a single visitor! Waterproof and Weatherproof: With IP44 waterproof technology, the working temperature is between -30°C and 70°C, 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 an outlet, then use the included adhesive tape or screws to mount the button on a wall or door frame. When someone is visiting, the blue LED will flash. Various ringtones and volumes: You can choose from 36 different ringtones, from classic to well-known melodies. Adjustable volume from 25db to 85db, 4 levels can be set. Wireless doorbell: 1 receiver and 1 transmitter, no batteries and no annoying cables. This wireless doorbell can