General description This high-quality wireless doorbell features a stable music chip and offers 55 melodies with clear sound. It is designed for outdoor use with an IP55 waterproof rating, ensuring reliable performance in various weather conditions. The doorbell includes a visual LED indicator, making it accessible for the hearing impaired. Technical specifications Melodies: 55 chimes Volume: adjustable in 5 levels (0 dB to 110 dB) Waterproof rating: IP55 (transmitter IP44) Operating temperature: -30 °C to 70 °C (-22 °F to 158 °F) Wireless range: maximum 300 m (1000 ft) outdoors Transmitter power: 1 x 12V/23A battery (included) Battery lifespan: up to 3 years Installation Plug the receiver into an electrical outlet. Install the push button using the included double-sided tape or screws. A jig for drilling screw positions is included for mounting the push button. Usage This wireless doorbell is suitable for various settings, including homes, apartments, schools, offices, warehouses,