High-Decibel Alert for Maximum Security: This portable alarm door stopper features an 80dB alarm that effectively deters intruders and alerts occupants to potential threats, ensuring reliable protection. Adjustable and Durable Design: Equipped with an adjustable anti-theft jammer, this alarm door stopper fits most door types. Constructed with high-strength alloy, it ensures long-lasting durability and stability for enhanced security. Quick and Tool-Free Installation: No tools required—set up or remove the alarm door stopper in seconds. Ideal for use in hotel rooms or while traveling. Vibration-Activated Alarm System: Featuring an advanced vibration sensor, the alarm triggers instantly when force or movement is detected, providing dependable door security. Compact, Portable, and Battery-Powered: Lightweight and easy to carry, this portable alarm door stopper operates on two long-lasting button batteries, offering up to 3 months of standby time. Its compact design makes it ideal for travelers seeking quick and effective security solutions. Color: Red Material: Alloy Package Contents: 1 x Portable Alarm Door Stopper Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual item. Measurement may vary by +/- 1-3 cm.