Features: Stainless Steel Cover. High quality. Wireless. Adjustable High-Medium-Low sensitivity. Vibration sensor. No installation required, easy for travelers to carry. Wedge-shape design to fit any hinged door. 120 dB high-pitched continuous siren when activated. Can be used as a doorstop when power switch is turned off. Powered by a 9-Volt Battery (Not Included). Mini size, space-saving. No installation required. Special design for use at home, office, hotel rooms. Ensures your safety and peace of mind at home or when traveling. Specifications: Color: Black and Silver Material: Plastic+Metal Working modes: Vibration sensor Volume of the alarm: 120 dB Three sensitivity: High, Medium, Low Battery: 1*9V battery (not included) Size: 14*4.5*4cm/5.51*1.77*1.57in Package Included: 1*Door Stop Alarm 1) We accept Alipay, West Union, TT.All major credit cards are accepted through secure payment processor ESCROW. 2 If you can't checkout immediately after auction close, please wait for a few minutes and retry Payments must be completed within 3 days. 1) WORLDWIDE SHIPPING. (Except some countries and APO/FPO) DHL UPS TNT FEDEX takes 3-7 days ,EMS takes 8-12 days. Post air mail need 2-8 weeks.But all of them are dependent on the country delivered to. 2) SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 1) Buyer's early confirmation will be highly appreciated after receiving the items. 2) Since your feedback is very important to our business's development, we sincerely invite you to leave positive feedback for us if you are satisfied with our product and service. 3) Please contact us before leaving any negative or neutral feedback. We will work with you to solve any problems.Thank you for your understanding!