Features: 1. 120dB ALARM SOUND: This wireless door alarm emits a high-pitched 120dB alarm when vibration is detected, helping to deter potential intruders. 2. STRONG ALARM: Activates a loud alarm if a door or window is opened without authorization, alerting occupants and discouraging unauthorized access. 3. EASY TO INSTALL: The wireless vibration alarm is simple to set up—just hang it on a doorknob, place it behind a door, in a locked position, or on a window. 4. PORTABLE DESIGN: Compact and lightweight, this security alarm is easy to carry and can be used in various locations. 5. VERSATILE USE: Suitable for use in homes, apartments, mobile homes, hotel rooms, garages, and other spaces to help enhance security. Specifications: Item Type: Security Door Alarm Material: ABS Alarm Volume: 120 dB Battery: 1 x 9V Battery (Not Included) Package List: 1 x Security Door Alarm