The USB-powered wireless smart doorbell with built-in light is a convenient and efficient solution for your home security needs. With its wireless connectivity, there is no need for complicated wiring installations. The built-in light ensures safety and visibility during nighttime. current wireless doorbell provides stable and reliable performance. Its sleek and stylish design adds a touch of modern elegance to your home. Features -Color:Black -Material:Plastic -Size:7.50X7.50X2.50cm/2.95X2.95X0.98in -Size:8.50X3.50X1.80cm/3.34X1.38X0.71in -Waterproofing level:IP55 -Rated voltage:DC 5. -Volume:25-100dB -Working frequency: -Receiver standby power:<0.5W -Convenient and quick installation with usb power supply for doorbell for home use with a built-in light. -Wireless connectivity eliminates the need for wiring, making it easier to install and use the wireless smart doorbell. -The built-in light ensures safety and visibility at night, providing added security for your home. -Stable and reliable performance is with the use of technology in the wireless smart doorbell. -The sleek design of the wireless smart doorbell adds a touch of style to your home. Package list: 1 x doorbell button 1 x receiver 1 x USB cable