Welcome to the store! Wireless outdoor doorbell, waterproof and automatic, no batteries needed, with temperature, humidity, and time display. Wireless doorbell with 38 melodies and 4 volume levels. 【Ready to Use】: This waterproof wireless doorbell for home is paired before delivery. No wiring or electrician installation is required during use, and installation can be done in 1 minute: insert the receiver into the socket and it is ready to use. 【Long Range】: This high-frequency electronic wireless remote control doorbell uses FM signal patterns, which has strong anti-interference ability and one-to-one signal matching. You don't have to worry about poor connection with the signal next door. And the detection distance is up to 180 meters in a free environment. 【HD Display for Temperature, Humidity, and Time】The wireless doorbell is equipped with a temperature sensor and a humidity sensor, which can know the indoor environment's temperature and humidity changes in real time, so you can enjoy a healthy life. The time reminder function ensures you never miss an important moment again. 【Weatherproof and Energy-Saving】: The wireless battery doorbell is made of high-quality ABS material, which has excellent flame retardant and fire-retardant properties. Operating temperature: -20°C - 60°C. IP45 dust and waterproof protection. The transmitter uses advanced self-generating performance and does not need to install batteries. 【Exquisite Appearance and High Quality】: The doorbell has updated 38 songs and 4 levels of adjustable volume. With 4 adjustable volume levels (with silent mode) from 0dB to 100dB. We have advanced automation equipment, high-precision placement. We strictly control product quality. If anything is wrong, please contact us as soon as possible to find a solution. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!