[Dual Purpose]: Functions as both a door stop alarm and door stopper, with a high damping rubber bearing to prevent door sliding and unauthorized entry.
[3 Sensitivity Levels]: High, medium, and low sensitivity settings for the door stop alarm, depending on the door's contact with it.
[High Volume Alarm]: Emits a very loud 120db alarm that is sure to deter intruders. Weighs 4.5 oz.
[9V Battery Powered]: Runs on a 9V battery, with one battery lasting for a year under normal use (Note: Battery not included)
[Simple to Use]: No installation necessary, just place the alarm behind any door (at home, in a hotel, etc).