120 dB Wedge Door Stop Security Alarm, Extremely Loud Wireless Alarm Siren Audible Up To 1,500 Ft., Non-Skid Pad, Compact Alarm Great for Home, Travel, Apartment or Dorm

I actually do recommend this, especially if you like sound machines that are strong and actually do their job. This one is definitely on the louder side, but in a good way. I already sleep with my sound machine turned up pretty high every night, and this still stood out to me in a noticeable way. I could hear it clearly from about 15 feet away, so it definitely fills the space instead of getting lost in the background. If you’re someone who needs consistent noise to sleep, block out other sounds, or just prefers something with a little more power, this would work really well. It’s not quiet or subtle, but that’s kind of the point if you’re trying to drown out other noise. Overall, it does what it’s supposed to do and does it well. WORTH THE MONEY and fairly easy to install. It does require those thick batteries so make sure you order that with this.

Very Loud when you use the siren. Also effective without. Of 5 different safety systems for hotel or guest room stays. This is my favorite.

This gave us a lot of peace as we were traveling as a family in different hotels on our recent roadtrip. Safety is always worth it! Buy this! Works just as described and is relatively small to pack.

It's simple, it's effective, but proper functioning depends on your floor surface. For those who don't want to read thru the end....Conclusion: This is a great and simple solution to keep people from entering your home, while you are at home. But you have to buy additionally a 9V block battery, need a micro screw driver to place the battery and you have to buy a simple fastener solution (see below) for slippery floor surfaces (e.g. wooden floors, stone or tiles) Delivery: I bought it on Amazon. Delivery was this time one day late. Opening: The packaging of the Alarm is tricky to open. Its completely blistered. This is not very Eco-friendly and you need strong household scissors to open it. Content: Just the Alarm, A short 1/4 page instruction. NO battery included. you need to buy a 9V block battery separately. Installation / Functioning: First you need to buy extra a 9V battery... if you realize this only after the packaging arrived, this might be quite bothersome as many households will have AAA or AA batteries always at home but not 9V block batteries. The installation of the battery requires a micro screw drive. A normal screw driver will not get you far as you wil just damage the screw head. Battery once installed you should be good to go. The alarm is loud and it works very effective. But I have a wooden floor and the device always slid away when opening the door. The rubbers on the bottom would hold strong enough to the ground. So I bought this Scotch Reclosable Fasteners, Clear, 1 x 3-Inches, 2 Sets (RF9730) to hold it strong to the ground and the door cannot slide it away. ==> this works perfectly. 1) The door is completely and very tight blocked! This keeps intruders from entering your home AND 2) you can remove the alarm easily while this scotch fastener consist of two parts. One sticks to the floor and the other to the alarm and you can peel the device off any time easily from the floor. 2) The alarm goes safely off if the door opens and cannot be switch off by the intruder - given you have placed the alarm fixed to the ground with the fastener close enough to the door. Final rating: As the obligatory 9V block battery is missing and additional investment into a fastener solution for slippery surface is needed (depending on your home) i can unfortunately only give 4 stars. Once installed properly it works perfect. Open question remaining: How long will the battery last?

These are great and loud! Perfect for serving its purpose! Con: when you turn it on, I wish the little light stayed on, so I would know that the battery was still working and that the wedge was in the on position when I’m in the dark.

I bought this thinking it was like the others we have, which make noise when you press them but stop when they are let go. These only have an on/off switch, and once it's on if you press them on accident they will not go off until you switch it to 'off'. I had given one to my dad to use, but after triggering it the first time and realizing it never goes off without manual input, I told him to just throw it away and I'd get him a different one. My dogs live with him and we both agreed it's not a good solution for someone who has pets. Pros: Does work. If it's just me, I use this in front of my bedroom door at night. Very loud! Cons: Must be switched 'off' to get it to stop making noise - this kills the ears because you have to be so close to it. Very un-friendly for animals because of the above. Imagine you accidentally leave it on, your dog somehow triggers it, and you're not back home for hours. For that reason I can't recommend this for pet owners.

I purchased this doorstop alarm as I was a woman traveling alone on a month-long trip to Europe. I wanted to bring something to help increase my safety while at the hotels. I took the batteries out of this doorstop before packing it in my suitcase as I did not want the alarm to go off in the airport/airplane. After I arrived, I decided that the stop itself was handy enough without putting the batteries back in - so I ended up using it without the alarm feature. Though, the alarm is very loud and will definitely do the trick to alert you if you do put the batteries in. The doorstop is very lightweight, which is good for packing on a trip. The only issue I ran into is that some hotels in Europe have doors that don't have much of a gap at the bottom like doors in the U.S. have. Even so, I put the wedge up against the bottom as far as I could and it will still help. Also, there is a rubber bottom on it which helps grip the floor and prevent the stop from being moved if the door is pushed in. I'm glad I brought this doorstop with me for the extra peace of mind and the alarm feature is a great bonus.

Perfect for that extra bit of safety!

Objet qu'il faut posséder absolument ! J'étais septique, mais plus maintenant ! Vous entendez l'alarme à plus de 100 mètre ! Très forte résonance tout le quartiers entends ! En plus de bloqué la porte ! N'hésitez pas ! PS : Prévoir une pile de 9V ! Dommages qu'elle ne soit pas fournie ! Mais vu la qualité de l'appareil, aucun soucis !

Took this on touring holiday of Vietnam and Cambodia and as two women travelling we definitely felt safer in our rooms, would use when staying anywhere UK included, set it off by accident a couple of times when forgot it was under the door and it is really loud!!!!

Suena extremadamente fuerte. Detiene la puerta muy bien. Muy buen producto

VERY Loud door alarm. However it somehow ran out of battery after one use as it was travelling in my backpack

I like this. Not just a regular door stopper, it also has an alarm function, which makes it much more useful for home travel or even apartment use. Once pressure is applied, it gives off a very sharp and loud alarm sound, which is exactly what I wanted from that kind of product. It's simple, easy to use, and gives a little extra peace of mind.