Wireless Doorbell, BIPLHIVZ Self-Powered Door bell IP44 Dustproof and Waterproof for Home, 0-110db Plug-through Wireless Doorbell Ringer for Homes Classroom 4 Volume Levels,36 Chimes and Tunes

【Weather Resistance Performance】: This doorbell is equipped with IP44 dust and waterproof capabilities, allowing it to function flawlessly in extreme climate conditions, including temperatures ranging from -4°F to 140°F (-20°C to 60°C). This ensures the device maintains optimal performance even in harsh environments.
【Three-in-One Design with LED Indicator】: As a multifunctional 3-in-1 wireless doorbell, it not only provides the fundamental doorbell function but also includes an LED indicator. This design offers both auditory and visual notifications, ensuring visitors are effectively announced in any circumstances.
【Dual USB Port Output】: The device features a unique design with two USB ports, providing a total output of 10W (5V/2A). This means, in addition to its primary calling function, the doorbell also serves as a charging station for users’ devices.
【Volume and Chime Selection】: Users have the flexibility to adjust the volume within a range of 0 to 110 decibels, depending on their preferences and the needs of their environment. With 36 different chimes and tunes available, there is a wide array of personalized options to choose from.
【Dual Plug-In Receivers and Extended Outlet】: Including two plug-in receivers and one additional extension outlet, the setup ensures that the doorbell signal can be received in multiple locations around the home without occupying too many household power sockets. This design not only makes installation convenient for users but also facilitates the connection of home appliances.