Wireless doorbell with smart design

1. You can install the doors in locations, like the kitchen, living room, bedroom, etc. 2. With double side stickers on the back side of the remote button, it is very easy to install. 3. The beautiful circulating appearance shows the elegant tastes of the home. 4. Energy-saving design for environmental protection. 5. Fully wireless operation - no wires or cables required. 6. Remote control distance up to 100 m - 150 m empty