This is a set of two security alarms that can be installed on windows and doors. It can detect both impact and opening with a single unit, and alerts you to suspicious intrusions with a loud alarm. With a 130dB high-volume design, it is expected to have a high deterrent effect as a security measure. It has a sensitivity adjustment function, allowing you to set it according to the installation location and usage environment. The ultra-thin type, about 8.5mm thick, makes it inconspicuous around windows and doors. Comes with warning stickers, which also helps to appeal your security awareness. This item is easy to use for those living alone, elderly households, and as a security measure for women. 【Main Features】 ・Window/door security alarm ・Set of 2 ・130dB high volume ・Detects both impact/opening ・With sensitivity adjustment function ・Ultra-thin design (approx. 8.5mm) ・With warning stickers 【Condition】 New, unused