Door Stop Alarm, Door Stopper with 120DB Security Alarm, Floor Wedge Doorstop for Travel Apartment Home House (Pack of 4)

[3 Level of Sensitivities]: Hige-Midium- Low Sensitivities. Which depends on the distance door touch the door stop alarm.

[Loud Alarm]: Very loud shrill that would definitely scare someone away with 120db alarm. Weight: 4.5 oz.

[Powered by 9V Battery]: Powered by 9V battery, One piece can be used for a year under normal circumstances. (Note: Battery not include)

[Easy to Use]: NO installation required, Simply place the alarm behind any door (home, hotel, etc).