Powerful 130DB alarm sound effectively deters intruders and alerts you to unauthorized access. Sensitive magnetic sensor triggers the alarm when a door or window is opened without permission. Easy installation and operation allow for quick setup in minutes without professional assistance. Compact and discreet design ensures the alarm blends seamlessly with your home decor. Ideal for various settings including homes, apartments, dorm rooms, and offices, enhancing security and peace of mind. Equip your home with this multifunctional door and window alarm system that provides an extra layer of security. With a standby time of 24 months and powered by 3 coin cell batteries, this alarm is designed for long-lasting performance. The dimensions of 98.5 x 33.5 x 8.5 mm easy to place in any location. The alarm operates in both magnetic and vibration modes, ensuring reliable detection of unauthorized entry. Color: White Material: plastic Package Contents: 1*alarm +1*magnetic strip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.