KERUI Door Stop Alarm & Portable Door Lock, Dual Protection Security Door Stopper Wedge Alarm with 3 Levels Sensitivity, Door ​Security Devices for Travel Hotel Home Apartment (2 Pack)

【Dual Function Doorstop Kit】-The door stopper alarm in the “ON” status, once someone tries to break in, the door stopper will obstruct and make a loud alarm with 120 dB (volume can not be adjusted) to alert. And the portable door lock gives you dual protection, preventing unsafe external entry, greatly bettering the security of you and your family.
【Non-slip Door Stopper】-The door stop alarm in “off” status, it may be used as common silicone base door wedge. Anti-slip design makes the door not easy to be pushed, so it can maximize your safety.
【Adjustable Sensitivities】-There are high-medium-low levels with an adjustable sensitivity switch on the stopper side, You’ll adjust according to the gap between your door and floor and the kind of flooring.
【Compact and Portable】-Small size, light weight, easy to take. You’ll carry them as a security guarantee for your shuttle or business travel. Enjoy the cheerful feeling during the journey.
【Easy to Install】-Each door stop alarm is powered by a 9V battery (not included). No want to use tools to install, just simply place the stopper under door (For inward-opening doors only). The gap between the door and the floor will have to be 10mm (0.39 inch) to 35mm (1.38 inch).