General description This wireless doorbell is designed for convenience and ease of use, requiring no batteries or complex installation. It features a waterproof design, making it suitable for outdoor use, and comes pre-paired for immediate functionality. With a sleek appearance, it offers 38 melodies and 4 adjustable volume levels, ensuring you can customize your alert to your preference. Technical specifications Operating temperature: -4°F to 140°F Detection distance: up to 600 feet in a barrier-free environment IP45 waterproof and dustproof rating Volume levels: 4 adjustable levels from 0 dB to 100 dB Installation No wiring or electrical installation is required. Simply plug the receiver into a socket, and the doorbell is ready to use in under a minute. Usage This doorbell features a temperature and humidity sensor that provides real-time updates on indoor conditions, enhancing your living environment. Additionally, it includes a time reminder function to help you keep track of