IP68 Waterproof: The battery-free wireless doorbell can withstand the harshest outdoor weather conditions, including heavy rain, snow, and scorching sun. We tested it and submerged the doorbell in water. The doorbell transmitter continued to work after being removed and dried. 150m Wireless Range: The range of the 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 hear the doorbell. It will not interfere with other electrical signals in your home. Battery-Free: The concept of our wireless doorbell with receivers is environmentally friendly and promises more convenience. This doorbell does not have a battery. Therefore, you don't have to worry about replacing the battery. At the same time, it also contributes to environmental protection. Compatible Design: We studied most household sockets in Europe and designed the most compatible wireless doorbell size that looks simple but incredible. Suitable for most homes in Europe. And the installation of the doorbell is very convenient. Multiple Ringtones and Volume: You can choose from 37 ringtones and music. Most customers choose "Ding Dong." Our wireless outdoor doorbell is extremely durable.