General description This waterproof wireless doorbell kit includes 2 transmitters and 1 receiver, providing a strong signal that can be transmitted up to 300 meters in open spaces. It is designed for outdoor use, ensuring you never miss any visitors, even with obstacles like doors and walls. The doorbell features a blue LED indicator for both the host and visitors, making it accessible for the hearing impaired. Technical specifications Range: Up to 300 meters Waterproof rating: IP44 Volume levels: 4 adjustable levels (25db to 85db) Melodies: 36 built-in melodies Installation Plug the receiver into an outlet. Attach the transmitter to the wall or door frame using the included adhesive tape or screws. Usage The doorbell is suitable for various settings, including homes, offices, hotels, and farms, enhancing security and convenience. The memory function allows for easy sound and chime selection.