Smart Wireless Doorbell for Home, Classroom, and Bedroom - SURFOU

Easy to Install
Plug the receiver into a convenient electrical outlet, mount the electric doorbell transmitter anywhere securely using double-sided tape or screws. The battery is pre-installed in the transmitter for hassle-free setup.

Weatherproof Doorbell
The doorbell features IP55 dustproof and waterproof capabilities, ensuring it can withstand all types of harsh weather conditions. Constructed with robust materials, it can operate effectively in temperatures ranging from -30°C to 70°C (-22°F to 158°F) without interference.

Ultra-Long Wired-Free Range
Enjoy reliable wireless signal coverage up to 1,300 feet (unobstructed space). The system is designed to avoid interference with your home electronics, providing a stable and powerful remote control. The transmitter battery can last up to 3 years, ensuring a superior user experience.

55 Chimes & Adjustable Volume
The door entry alert is equipped with 55 distinct ringtones, allowing you to choose the perfect sound for your preferences. Adjust the volume from silent to noisy (0 db to 110 db) with 5 levels of control to suit various occasions. The system remembers your last setting, ensuring it returns to your preferred volume after a power failure.

LED Number Display
The LED indicator can display different numbers to help you easily identify which door has been opened. This feature is particularly useful for those with hearing impairments or the elderly. You can also expand your door chime system by adding multiple receivers and transmitters of the same model.