This battery operated door alarm stopper is perfect for dorms, apartments, sorority houses and hotels.
Dual Function: it can as a door stop alarm or door stopper; Its bottom anti skid silicone protective pad can prevent the door sliding
3 Level of Sensitivities: the alarm has three levels of sensitivity adjustment, high, medium and low, and can be adjusted according to your needs
Loud Alarm: alarm volume up to 120 dB to scare off intruders.