Wireless Doorbell IR Infrared Motion Sensor Battery/ USB Powered Night Light Infrared Detector For Home Shop

Specification: 
Power supply :5V; 
Battery: 3* AAA alkaline batteries (Batteries are Not Included); 
Induction range: 2-7 meters; 
Volume: 4 levels adjustable (Adjustable mute only flashes); 
Induction method : infrared sensor triggered; 
Ringtones:Welcome mode 11 national languages, multiple prompts tones; 
Volume level: 0-100DB; 
Detection Angle: 120°; 
The main function: Automatic body sensing , ultra-long , wide-angle detection. Adjustable direction (with stand); 
Installation : Secure with double-sided tape or screws; 
Installation height:1.5-3m; 
Size:95mm*68mm; 

Package Includes: 
1 * Wireless Doorbell;