Features:
Material: Stainless steel cover
High quality.
Wireless.
Adjustable High-Medium-Low sensitivity.
Vibration sensor.
No installtion required， easy for travelers to carry.
Wedge-shape design to fit any hinged door.
120 dB high-pitched continuous siren when actiated.
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 dedign for use at home， office， hotel rooms.
Ensures your safty and peace of mind at home or when travelling.
Working modes: Vibration sensor
Volumn of the alarm: 120 dB
Three sensitivity: High， Medium， Low
Battery: 1*9V battery (Not include)

Specifications:
Color: Silver and black (as shown in the pictures)
Size: 135*45*40mm
Net weight: 94g
Package dimensions: 225*125*40mm
Package weight:128g