【Protect Your Home】Hang this door alarm on your door handle and be alerted with a loud 120dB alarm that can be heard up to 150 feet away when someone touches it, keeping intruders out. 【Adjustable Sensitivity】Adjust the alarm's sensitivity with three different settings (High, Medium, and Low) to suit your needs. Choose between chime & alarm mode or off mode. 【Easy to Use】The door sensor requires no complex setup or wiring. The alarm is powered by 3 AAA batteries (not included) for quick and easy installation. 【Versatile】This compact and portable door alarm is suitable for various types of doors and windows with handles. It's perfect for families, rental rooms, dormitories, hotels, shops, warehouses, and other places where anti-theft protection is needed. It's also an effective travel helper to protect the safety of you and your family. 【Effective and Reliable】The alarm detects vibrations and emits an alarm, making it an effective and reliable way to protect your home and belongings.