Features:
100% Brand new and high quality!
Motion sensor to welcome your guests with beautiful song automatically.
It provides an extra security and convenience for you and your family
No Wiring is required， easy to use.
It is suitable for the dwelling houses， shops， offices，factories and so on.
Powered by 3x 1.5V AA batteries (not included).

Specifications:
Material: Plastic
Color: White
Size: approx. 10.3*6.5*3.7cm

Package includes: 
1 x Guest Saluting Alarm Doorbell