POWERFUL 4 MODES - Alarm,Constant Alarm,Closing-door Hint ,Door Bell
ANTI-THIEF - Magnetically triggered alarm suitable for Doors or Windows,extremely loud 110 dB alarm helps wake/alert homeowner , helps deter intruder and possibly notifies neighbors
FRIENDLY MODES - Slide the ON/OFF switch to select one mode ,alert you when children or guests are coming and going when you are at home.
EASY INSTALLATION - Peel and stick installation
HIGH SECURITY - Operated by 3 PCS (AG13/LR44) button cell (batteries included in package)