【Ready to Use】: This waterproof wireless doorbell for home is paired before delivery. No wiring or electrical installation is required for use, and installation can be completed in 1 minute: just plug the receiver into the socket and it is ready to use. 【Long Distance】: This wireless remote control doorbell with high-frequency electronic technology adopts an FM signal scheme, which has strong anti-interference ability and one-to-one signal matching. No need to worry about poor signal next door. In open environments, the detection distance can reach 600 feet. 【HD Temperature, Humidity and Time Display】The wireless doorbell is equipped with a temperature and humidity sensor, which can understand the temperature and humidity changes of the indoor environment in real time, allowing you to enjoy a healthy life. Hourly reminders ensure you never miss any important moment. 【Weatherproof and Energy-saving】: The battery-free wireless doorbell is made of high-quality ABS material with excellent