【150m/490ft Wireless Range】A penetrating and strong signal helps you never miss the arrival of a visitor, even if you are in other rooms or other floors of your house. Wireless doorbell chime kit for homes, classrooms, offices, apartments, schools, villas, hotels, factories, hospitals, etc. 【32 Chimes & 4 Volume Levels】: It has 4 adjustable volume levels, the maximum intensity is 100dB and the minimum is 50dB (mute), which can be adjusted at any time according to the situation. There are 39 different ringtones to choose from, including a variety of classic ringtones. Provides you with rich and clear sound. A host can be equipped with multiple doorbell buttons, each doorbell button. 【IP44 Waterproof & Weatherproof】The wireless doorbell is built to last with its IP44 waterproof and weatherproof construction. This doorbell works in temperatures ranging from 14℉/-10℃ to 131℉/55℃ and withstands various bad conditions. Don't worry about rain, snow, or extreme temperatures - your waterproof