PAVEOS Hotel Door Burglar Alarm, Door Alarm, Door Plug Alarm, Home Door Stop Alarm, And Property Feature Function: Alarm & Door Stop Extra Alarm - Sounds a 120 dB when protected door is opened Acts as a door wedge to stop an intruder from entering Wedge shaped door stop design prevents further entry the harder they push. Inexpensive and portable solution for hotel doors, offices, dormitory room entrances or your home. Bottom of door alarm has-slide pads to hold it secure Three position motion sensitivity control activates the alarm if the unit is 3 Sensitivity - Low - Medium - High Stainless Steel Cover No installation required Uses 9V battery (not included) Size: 13.6 x 4.5 x 3.6 cm (Approx) Material: ABS plastic Color: Black + Package Contents: 1 x Door Stop Alarm Househeld supplies for adult and children Design: Our smart household appliances adopts a close-to-life design, just to achieve a satisfying experience for you. Durability: This smart household appliances is made of sturdy and durable materials, which can maintain its functionality even after frequent use. Multipurpose: This smart household appliances can provide convenience for your daily life, whether it is for daily work or home leisure, you can also give it to your husband/wife/family, they will love it! Wide Selection: Discover an extensive range of household tools, from indoor to outdoor accessories, ensuring you find exactly what you need for your home . This smart household appliances will surely fulfill your needs! Service: If you encounter problems in the process of using smart household appliances, please feel free to contact us and we will solve them for you.