Thank you for viewing this product out of many others. We have included some great deals at the end, so please read through to the end. ■ Condition Stored at home and opened for photography. Everything in the photos is included. There may be minor scratches or dirt from storage. *Please refrain from purchasing if you are sensitive to the fact that this item has been handled by someone else. ■ Specifications Adjustable sensitivity: High-Mid-Low. No installation required, easy for travelers to carry. 120dB continuous high-intensity siren when activated. Vibration sensor, professional and durable. Wedge-shaped design fits any hinged door. 【Discounts】 First-time buyers will receive a 5% discount if you follow us. Please leave your request in the comments section, and we will respond.