【Ready to Use】: This waterproof wireless doorbell for the home is pre-paired before delivery. No installation required. No wiring or electrician is required during use, and installation can be completed in 1 minute: plug the receiver into the socket and it's ready to use. 【Long Distance】: You don't have to worry about poor signal connection. And the detection distance can reach 180 meters in a free environment.

【HD Screen for Temperature, Humidity, and Time】The wireless doorbell is equipped with a temperature and humidity sensor, which can detect and monitor changes in indoor temperature and humidity in real-time, allowing you to enjoy a healthy lifestyle. The time reminder function ensures that you never miss an important moment. [Weatherproof and Energy-Resistant]: The wireless, battery-free doorbell is made of high-quality ABS material, which has excellent flame retardant and fire-resistant properties. Operating temperature: -4°F to 140°F. IP45 dustproof and waterproof protection. The transmitter has high-grade self-generating performance and requires no batteries. 【Exquisite Appearance and High Quality】: The doorbell has been updated with 38 tunes and 4 adjustable volume levels. Technical specifications: Plug-in receiver voltage: AC85-260V (EU) Power consumption: Transmitter: <20 mA Receiver: <140 mA Waterproof rating: IP44 (P, N, T models) Transmitter: Transmitter life > 200,000 times, 3-4 N pressure. Range: over 150 meters in open areas. Selectable ringtone: 38 melodies. Volume range: 0-100 dB, 4 levels. Operating frequency: 433.92 MHz. Operating temperature: -20℃ - 65℃. Makes life easier and more convenient. Visitors: You don't have to knock or shout at the door. Home: You don't have to worry about losing visitors.