Shoreline Marine Eco Air Horn

Well, this is loud! I bought the smallest one on Amazon, since it's just for emergencies or rarely to get people's attention. (I don't have a boat, or I'd probably have bought a much bigger one.). I bought one as a desert tour guide for stragglers. I warned them "one blast, stop dawdling and walk toward the bus; two blasts, we're about to leave, so maybe you should pick up the pace; three blasts, call an Uber if you can get a signal. We're leaving without you." I never had to use the horn, but just telling them about it made a difference. Especially the part about "call an Uber *if* you can get a signal," something people take for granted in the cities and suburbs, but when you're in the desert mountains, signals are few and far between. The other one I bought a few years earlier for a tenant who had a young, rambunctious upstairs neighbor who practiced nightly noisy interactions of just the type you are imagining. Banging on the ceiling with a broom stick didn't work. Talking to her didn't work (the tenant talking). I finally wrote a letter saying "You know, Mary can hear *everything* you do in your bedroom. Everything." The tenant didn't care, so I bought Mary an airhorn to use to scare the bejeezus out of the rambunctious upstairs tenant. She used it only once, and the tenant upstairs got quieter after that. Long stories, just to show that these things are loud, compact, convenient, and inexpensive. I've never used one long enough to see how long the charge lasts, but for my purposes they were great.

I use this to protect my small dogs from unleashed dogs running at us. I don’t know if it would stop an extremely vicious dog out for blood, but it definitely stops most of them. The ONLY reason I gave three stars for value is the way amazon changes the price. I’ll pay $5 one time (five-star value, and fair, since you only get a few blasts pet can), and then it TRIPLES in price, which isn’t a value at all. But the horn works for my purposes, and I would imagine it’s more than loud enough for boats. For the reviewers who have said it’s garbage, they must have either received defective ones or not screwed the horn on tightly. I’ve been through a few of these and they’ve all worked well. Amazon is usually decent about replacing defective products, so there’s no risk in trying. One tip - don’t test in inside 😂.

Very loud for such a little horn. I have neighbors who play loud music which penetrates through my walls. After attempting to work with them on keeping the music at a respectable level, calling the police, and working with the HOA; I researched options to get the point a crossed and the horn worked. The powerful sound would work great on a boat, sporting events and any other areas one wants to make themselves heard. It is easy to use, press the button and listen to the horn go. You decide when to stop the sound.

UPDATE: I've now been using the *first* one (of five) for almost four weeks, off and on -- probably, a total of 15+ short (< 1 sec.) blasts. It still feels like the can has maybe 40% or life left; it certainly doesn't get cold when using it, which seems to be the clue that the gas is almost gone. Yes, the horn tends to loosen with use, and the loudness suffers. It needs to be pretty tight to work. I suppose one could put a little Loctite on the threads before the first use, but I just tighten the horn every time I go out. For the price and ease of carrying, I will *definitely* buy these again. ________ I've seen reviews of this device and others that say, "It worked a couple of times, then stopped. Won't buy it again." Here's my take. This is a small, very portable alarm (fits in a pants pocket) that makes a loud noise to notify others that you are either in distress, or want them to stay clear. I'm using them to train my dogs -- definitely gets their attention! The output is VERY loud -- I wouldn't recommend using it indoors -- and I've used it for 5-6 short blasts (1/2 sec. or less), with no obvious signs that I'm about to run out of gas; I expect to get at least 2x that use out of each can. Will it signal the period ends at soccer games over a playoff weekend? Probably not. There are three sizes of these devices, trading off ease of carry vs. the number/length of blasts in the air can. This one is designed to be portable, with enough 'toot' to save one fog-stranded kayak paddler, keep a couple of dogs from chasing squirrels in a park for a few days; or scare away one bear or coyote. For larger jobs, get the 8oz. model, which has 6-7x the compressed air. And I don't know if they've improved the design, but my horns have brass thread where they attach to the canister, so if tightened properly, they shouldn't leak air. If I had any complaints, it would be that the button on the horn is kind of hard to push: it's not possible to give a polite 'chirp' -- when pressed, one has to mean to use it!

My daughter sleeps through everything. I bought her one of those Sonic Bomb alarm clocks and that's been working great. However, there are a few times where she will still sleep through it. I bought this air horn for such occasions. The alarm clock is so loud, it wakes me up as well, so I've established the following with her: If the alarm clock wakes me up, I will go to her room and wake her up with this air horn. We can both start our day with a rude awakening. I'm please to say that the use of the air horn had only happened once or twice over the past 6 months.

Bought this horn because it is required by Coast Gaurd to go boating in Gulf of Mexico. We relocated down to Destin area from missouri where we boated on Lake of the Ozarks for past 15 years. After reading the requirments we purchased a ship to shore vhf radio, flares, this horn, and some other items the Coast Guard requires you have on your vessel. This is a loud horn designed to catch peoples attention should you need help while out on the waters. Its about the size of a can of spray paint (a little smaller). I have not tested it out, but most of us know what an air horn sounds like. Cover your ears and let it rip. We will stash it away in our safety bag onboard and hope we never have to use it. We went for cheap air horn that will do the job and decided on this one based on other reviews and cost. I woupd recommend it so far, but update this review should we learn more about it. Sorry, but that is all we can say about it for now.

The title says it all. When a relatively large black bear entered our campground, a few quick blasts, made it immediately turn around and walk away in the other direction.

I didn't expect this little guy to be so powerful! I had bought it to play a prank on our boss, which we all have great working relationships with at our place of work. I tested this of course, what curious human wouldn't. It was very simple to place together, just attach the blue top nozzle and twist until snug. Fairly simple which is great. As my poor fiance sat at the table writing out checks to pay off some bills, I pressed the button ever so lightly and only laid it out for a maybe a second or two. His head jolted up, and him looking down saying a few cuss words under his breath due to jolting his pen across his check he was working on. Needless to say you will hear some ringing after, so do not place this directly by your ear or you may end up partially to fully deaf. Be smart. I'm glad I purchased this, it's a great bang for your buck!

Well the size was smaller than expected but the product worked out.

Was tinier than I envisioned, so wasn't expecting it to be as loud as I needed. Tested it out real quick on the deck with a short burst and nearly blew my eardrums out.

Très fort. Mais petit

This product provided the functionality that was claimed. However it is a dangerous device that has not been properly labeled. The United States Centers for Disease Control indicate that ‘noise above 120 dB can cause immediate harm to your ears’. This horn delivers 120 decibels. A quarter second button press and my ears were instantly in pain and ringing. Not indicating the danger clearly on the product would be as irresponsible as not labeling a hazardous chemical. Make sure children do not have access to this horn, and ensure that you protect your ears before use. Also, note that the sound of the horn is very high frequency, similar to the high piercing sound a balloon makes when air is released through a flattened valve (so, not like a low fog horn).

works great!