General description This wireless doorbell is designed for outdoor use with an IP44 waterproof rating, ensuring durability against dust and rain. It operates effectively within a range of 300 meters in open spaces, allowing you to place the receiver anywhere in your home without interference. The doorbell features 36 different melodies and 5 adjustable volume levels, making it suitable for various environments, including homes, offices, hotels, and factories. Technical specifications Transmission Range: 280 meters (unobstructed) Rings: 36 different ringtones Volume: 5 adjustable levels (0 dB ~ 85 dB) Power supply (receiver): AC 110-240V 50/60 Hz Power supply (transmitter): 1 x 12V 23A battery (included) Waterproof (transmitter): IP44 Installation Fix the doorbell (transmitter) on the wall or door frame using adhesive tape or screws provided. Plug the receiver into any electrical outlet to start using the doorbell. Usage This doorbell is ideal for various applications, including