Small Size, Big Power! Secured 100%!
No installation is required, you simply place the battery-powered doorstop at the base of any door, turn it on and go about your business. Plus it has a nonskid bottom so you don't have to worry about it moving around.

Features:
1. Press the button to "L", and start the alarm. Press the button to "H", and turn on the sensor function.

3. It is a good helper when you travel, on business, and live alone, providing effective security and protection for hotels, apartments, dormitories, bathrooms, and bedrooms.

Specification:
Type: Door Stop Alarm
Material: Stainless steel cover/Plastic body/Damping rubber bottom.
Color: Black
Volume:≥120(dB)
Working voltage : 9(V)
Working current : 0.2(mA)
Battery: 1*9V battery(Not include)
Three sensitivities: High, Medium, and Low
Shape: Wedge-shaped
Size:14*4.5*3.8CM/5.5*1.8*1.5"
Net weight:120g/4.2oz
Package Content:
1/2/4 Pack Door Stop Alarms