Wedge Door Stop Security Alarm with 120dB. Siren Door Stopper for Home and Travel (2 Pack)

HOME SECURITY NECESSARY: This is a smart Door Open Alarm to give off siren warning once the door is push open, the 120db sharp alarming will scare away bad guys the first time.
3 LEVEL OF ADJUSTABLE SENSITIVITY: Design in 3 varying degree pressure sensing with High/ Midium/ Low choosing. H is the most sensitive level that subtle movement will trigger an alarm.
ANTI-SKIP DOOR STOPPER: Also can be used as a damping rubber base door wedge, hold the room door in position when in need, grip all floor types.
POWER SWITCH: Powered by 1 pcs 9V battery, switch to off, the 120db siren will not be activated and you can use it as a door wedge. Simple to install, just place it behind the door. Fit open inwards-door, the gap bewteen the bottom of the door and the floor should be 15mm to 35mm.
FOR HOME AND TRAVEL USE: Compact and Lightweight, suitable for home and taking to hotel in travel, provide reassuring and reliable security for you and your family. Extremely a must have for girls .