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SUMMER SALE UPDATE: Due to the high demand for our Summer Sale, our stock is almost sold out!
This Portable door jammer is an industrial-strength door security device, that prevents unwanted entering forcibly, High-sensitivity induction, will alarm as soon as it vibrates, guarding your sweet sleep. Also suitable for public buildings, schools, and offices for all you.

The upgraded door stopper is made of thick aluminum alloy material, anti-crack, and durable in use. The bottom is made of high-quality rubber material, has a strong grip on the floor, wear-resistant. The great design uses the displacement of force to block the door against attempting forced entry. Make you feel at ease and safer.
No tools. It just takes a moment to fit in the gap under an in swinging door. Place the door lock stopper below the door handle directly, then adjust the foot to make it tightly grasp the ground. In an emergency, the quick-release removes the lockdown with an upward motion. Note: Testing the door ensure the door stopper is firmly fixed in position.

The door jammer is very compact and exquisite, it can be put in a bag or pocket, and we provide an extra storage bag to put it in, so you can carry it with you when you are on business or traveling.
This door security devices stopper is better suited for door gaps of 0.2-1.38 inch ( 5-35mm), and door thicknesses of 1.18-1.97 inch(30-50mm). Compatible with all types of floors.

Potable door jammer:
1. Provide absolute security and privacy, increase the security of your room
2. Will not mark or damage the door, especially will not violate your lease.
3. You can go through security checks such as high-speed trains, subways, and planes.
4. Built-in two-button batteries, can stand by continuously for 3 months

Portable, Durable
Compatible door thickness: 5-35mm
Weight: 233g
Color: red
Material: Zinc Alloy
●Battery two CR2032
●80 decibels
●The indicator light flashes every 6 seconds
●Battery standby for 3 months
●Start working after flashing light
●60 times of regular use
●Beep for 5 seconds each time

1. Align under the door handle and insert
2. Tighten the bolts clockwise
3. Turn on the alarm switch
4. Try opening the door from the inside
Product Dimensions: 14 x 11 x 5 cm; 360 g

Every order ships free with UPS — no minimum, no surprises at checkout.
As soon as your parcel leaves our warehouse you'll receive a tracking
number by email, so you can follow it door to door.
You have 30 days from delivery to change your mind.
Email us with your order number and we'll send return instructions the
same day. No reason needed, no forms.
Once your return arrives, we refund your original payment method within
5 business days.
Enjoy 30 days of free returns, with less than 1% of customers asking for their money back.
320 customer reviews
Beautiful quality and exactly as described.
Beautiful quality and exactly as described.
Beautiful quality and exactly as described.
Beautiful quality and exactly as described.
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Why buy from us?
Everything we sell has been ordered, unboxed and used by someone on our
team first. If it didn't hold up, it never made it onto the site.