Durable Security System Door Stopper

Dual Function: Can be used as a doorstop alarm and doorstop, its high damping rubber bearing can prevent the door from sliding and prevent bad guys from entering. A protector around you. It can be used at home and when traveling. Notice: Door stop alarms fit 0.6 inches and a 1.2-inch door-to-floor gap 3 sensitivity levels: High-medium-low sensitivities, which can be adjusted according to your own needs Loud Alarm: Very loud that would definitely scare someone with a 120 dB alarm. Weight: 4.5 ounces Powered by 9V Battery: The doorstop alarm is powered by a 9V battery, one piece can be used for one year under normal circumstances. Very practical: (Attention: Battery not included) Easy to use: No installation is required, simply place the alarm behind any interior door (home, hotel, etc.). Very convenient to take with you when you travel or stay indoors alone. A must-have around you.