【Ready to Use】: This waterproof wireless doorbell for home comes pre-installed before shipping. No wiring or electrical installation is required, and installation can be completed in 1 minute—simply plug the receiver into the power outlet and it's ready to use. 【Long Range】: This wireless doorbell with remote control and high-frequency electronics uses an FM signal scheme with strong anti-interference ability and 1:1 signal matching. You don't have to worry about the poor signal next door. Outdoors, the detection range can reach 180 meters. 【HD Display of Temperature, Humidity, and Time】 The wireless doorbell is equipped with a temperature and humidity sensor that detects indoor temperature and humidity changes in real time, providing you with a healthy life. Timely reminders ensure you won't miss any important moment. 【Weatherproof and Energy-Saving】: The battery-free wireless doorbell is made of high-quality ABS material with excellent fire and flame retardant performance. Operating