General description This wireless and battery-free doorbell is designed for outdoor use, featuring an IP65 waterproof rating that protects it from snow, rain, and humidity. It operates without the need for batteries, making it an environmentally friendly choice that saves you money. The doorbell generates its own power when the transmitter is pressed, ensuring reliable performance without the hassle of battery replacements. Technical specifications Transmission power: self-powered Doorbell Receiver Power Supply: AC 110V-230V, 50/60Hz Receiver Power Consumption: 0.25W Operating frequency: 433 MHz Operating temperature: -4°C to 140°C Product dimensions: 10.6 x 7.6 x 5.6 cm Weight: 100 g Volume levels: 4 Ringtones: 38 melodies Transmission range: up to 152 m (500 ft) in open areas Installation Plug the receiver into an electrical outlet. Use the included accessories (2 screws and a piece of tape) to secure the transmitter to the wall. No complex programming is required; simply select a