DOOR HANDLE ALARM - This door handle alarm is an ultra-loud deterrent to any potential criminals. This security product emits a 125dB siren when activated, making any intruder rethink their intentions. LIGHTWEIGHT AND PORTABLE HANGING INTRUDER ALARM - The lightweight and portable intruder door alarm can be taken anywhere with you and used in any property on any door. Ideal for use when traveling or staying in hotels on the road. EASY TO USE MOTION DETECTOR HANDLE ALARM - No installation required, simply hang on the back of any door handle. This design is primarily intended for metal door handles. FULLY CUSTOMIZABLE DOOR ALARM SETTINGS - This hanging door alarm has the functionality and sensitivity adjustment so you can choose the siren setting. The door alarm also has a convenient exit delay so you can set it before leaving. Note: Batteries are not included, batteries need to be purchased by yourself.