Features:
High strength signal and sensitivity
Easily install and operate
Effectively reminds you of the coming of guests or friends
Also a good anti-theft alarm or welcome door bell
Powered by 3XAAA batteries ( not included)

Specifications:
Color: White
Sound frequency: 75-95dB
Sensing range: 5-10m
Sensing angle: 110°
Package weight: 150g

Package includes:
1*Wireless Sensing Greeting Warning Door bell