【Dual Function】Can be used as a door stop alarm and door stopper, Its high damping rubber bearing can prevent the door sliding and prevent the bad guys into. apartments, dorm rooms, front doors, etc;peace of mind when traveling or working alone.
【3 Level of Sensitivities】Hige-Midium- Low Sensitivities. Which depends on the distance door touch the door stop alarm.
【Loud Alarm】Very loud shrill that would definitely scare someone away with 120db alarm. Weight: 4.5 oz.
【Powered by 9V Battery】 The door stop alarm powered by 9V battery, One piece can be used for a year under normal circumstances. Very practical. (Note: Battery not include)
【Easy to Use】NO installation required, Simply place the alarm behind any door (home, hotel, etc). very convenient to take with you when travel or stay indoor alone.

Technical Parameter：
Color: Silver and black (as shown in the pictures)
Material: Stainless steel cover
Working modes: Vibration sensor
Volumn of the alarm: 125 dB
Three sensitivity: High, Medium, Low
Battery: 1*9V battery
Size: 135*45*40mm
Net weight: 294g

Package:
1 Pack doorstop alarm(battery are not inclued)