【1312 ft Transmission Range】This wireless doorbell offers a transmission range of 1312 feet, ensuring you never miss a visitor, no matter where you are in the house. It also prevents interference from nearby wireless devices. The set includes 2 transmitters and 2 receivers for added flexibility. Ideal for home or office use. 【IP65 Waterproof Rating】This doorbell set features a transmitter with a battery life of up to 4.5 years. The transmitter is rated IP65 waterproof, effectively protecting it from rain, dust, and harsh weather conditions. It operates reliably in temperatures ranging from -20°C to 60°C, making it ideal for outdoor use in various environments. 【Battery Powered】This door bell set includes a battery-powered receiver that requires no electrical outlet or Wi-Fi connection. This allows flexible placement anywhere in your home or even portability, so you can be notified of visitors at any time. Ideal for homes or offices that value mobility and easy installation. 【Personalized Settings】This door bells wireless cordless offers five volume levels (0–110 dB) and 60 selectable ringtones. In silent mode, there is no sound, but the LED indicator flashes as a visual alert. The memory function automatically restores the last selected volume and ringtone settings when powered on, enhancing convenience. 【Easy Installation】This battery doorbell is ready to use in just minutes. It comes with adhesive stickers for quick mounting, and the receiver is powered by three batteries for immediate use. We offer lifetime free technical support and a 36-month manufacturer’s warranty (registration required)., Weight: 0.330693393 pounds, Manufacturer: TECKNET