Sicherheitstürstopper, 3er-pack, Keilförmige Türstopper Mit Alarm, Können Türen Blockieren, Geeignet Für Reisen Und Die Sicherheit Zu Hause, 120 Dezibel Alarm.

Three sensitivity settings—low, medium, and high—with a sensitivity adjustment switch on the side. When closed, it also acts as a wedge to prevent the door from being opened. No installation required. Requires 9-volt batteries. Portable and easy to use, it's ideal for adding peace of mind when traveling or working alone. Loud alarm. A 120-decibel alarm sounds when pressure is applied to the door stop.