Specifications:
1. Color:Silver+Black
2. Net weight: 33g
3. Alarm sound:100dB
4. Type:Vibration alarm
5. Package weight: 76g
6. Usage:Windows & doors
7. Item dimension: 70*70*9mm
8. Working distance: within 50m

9. Battery: 3pcs LR44 button batteries

Function: Ultra-slim Round design for various Door/Windows, especially for sliding Door/windows. When illegal persons invade and make the doors or windows vibrate, it will start alarming and warns hosts and threaten the intuders away, you can hear from 50 meters away, it could effectively help protect your property safety.