Features:
Wireless System.
It provides an extra security and convenience for you and your family.
38 Melody music for you to choose.
You can install the doorbells in locations， such as kitchen， back yard， bedroom， etc.
Energy saving design of environment protection.
Super long receiving distance.
Remote control range up to 150meters in the open air， suitable for homes and high-rise building.

Specifications:
Door bell size: 6 * 10 * 3cm
Remote button size: 4.5 * 8 * 2cm
Color: White
Music choices: 38 Melody music
Working mode: Wireless remote control
Receiver operating voltage: 3V
Power: 0.5W
Doorbell Powered by: 2 x AA batteries(NOT include)
Remote Control Powered by: 12V/23A Battery
Range Approx: 150 meters
Net Weight:200g

Package includes:
1 x Remote Control Button
2 x Receiver Musical Doorbell