Portable, made of ABS material, lightweight, rust-proof and durable. Whether you travel or go for business, you can take it anywhere and anytime. load. Your journey home is necessary. 120 dB ultra alarm ringing. Turn it on and the alarm will scare away unwanted intruders, so you and your families are protected. Can be used by bike. To stay in the hotel, you can install this door alarm on the door and window. It protects you when you check out, take the alarm with you for next time. Easy to use, just turn it on and hang it on the inner door handle, without special wires, safe and secure, intelligent efficient, convenient operation. If you do not need to use the alarm, just set the switch to "ON" and the alarm devices in standby position. The door alarm can be widely used in your home, office or factory, hotel and so on. When you install the touch sensor in your home, office or factory, it will alarm as soon as children open the doors and windows or a theft breaks., Weight: 0.15 pounds, Manufacturer: Sonew