IP68 Waterproof: The wireless outdoor doorbell is waterproof and can withstand the harshest outdoor weather conditions such as heavy rain, snow and scorching sun. We tested it and put the bell in the water. It shows that the doorbell transmitter can still be used normally after the water is dried. 150m Range - The range of the wireless doorbell receiver can reach a radius of 150m, which is suitable for apartments, villas and gardens. Even if you are in the garden or on the second floor, you can still hear the bell. And will not interfere with other electrical signals in your home. 【Without battery】The concept of our doorbell with 2 receivers is environmentally friendly and convenient. This doorbell has no battery, so you don't have to worry about replacing the battery. At the same time, it also contributes to environmental protection. 【Compatible Design】We have researched most household sockets in Europe and designed the most compatible wireless doorbell with waterproof outdoor size,