Voarge 2 Pack Door Stop Alarm, 120dB Door Stop Alarm Wedge Shaped Door Stopper Wireless Alert Home Security System, Adjustable Sensitivity Lightweight Door Stop Alarm for Home Hotel Travel

• Durable with High Quality: The door stopper alarm is made of great ABS plastic and stainless steel plate. Excellent performance in quality and service period. Mind the gap between the door and floor shall be at least 5-10mm for its normal operation. Greater than 3.5cm, unable to function properly
• Easy Operation: There are ON/OFF key on the door stop alarm. Simply place the alarm under the door and turn on the switch and it will start to work.Once intruder tries to enter, door alarm stopper will be triggered at once and issues 120dB alarm, scare off intruder and alert the owner of the room
• Adjustable Sensitive Levels: Adjust sensitivity of the door stop alarm-Low, Medium and High. Choose levels according to your need. Set high level when you are sleeping and you will know subtle differences of your door and get a peace of mind. Remember to push it tight under the door when using
• Excellent Design: Damping rubber at the bottom can prevent door from slipping when someone pushes. Remember to push it tight under the door when using. It is not recommended to use it on too smooth floors, like tiled/laminate/wooden floor or set high sensitive level if necessary. Can be used as a normal door stop when turns off the switch and hold doors in proper position. Lightweight and small size makes it easy to put in your purse and carry
• Protect Your Security: Only requires a 9V battery, NOT supplied. Doorstop alarm is your indispensable travel partner, providing security when you're staying in hotels, dorms and hostels. It can also be used at home, in the garage or in the workshop, help you protect yourself and your belongings no matter where you are. It is better to use in doors that opens inward like hotels. Feel at ease even when you are alone

Features The bottom adopted anti-skid pad to increase friction and prevent thieves and criminals from entering. Anti-theft, security protection, easy to carry and convenient to use. Small size and wedge shaped anti-skid design, it is suitable for any hinged door. There is sensitivity controller on the side that you can select high/middle/low sensitivity. 120db treble alarm, when someone is ready to invade the room, the alarm sounds back, scares off the intruder, and reminds the owner. This door stopper alarm is a secure alarm device widely used for home, apartments, office or hotels. Specifications Color: Black Material: Plastic, Metal Volume of the alarm: 120 dB Three sensitivity: High, Medium, Low Power supply: 1*9V battery, not included Size: 14*4.5*4cm/5.51*1.77*1.57in How to use it? 1) Put one 9V battery, not included 2) Select sensitivity level: M/meddle, L/Low, H/High 3) Turn ON alarm 4) Insert alarm under door Package Content: 2 x Door Stopper Alarm. Excluding batteries NOTE 1. Please check the size of your door firstly. The gap between the door and floor shall be at least 0.5cm, Less than 3.5cm 2. Not Suit Too Smooth Floors. 3. Suitable for doors That opens inward