and is loud as hell (it sounds like a marine airhorn)
347216
While the product works extremely well, and is loud as hell (it sounds like a marine airhorn), I noticed that people on land don't really respond to it as well as I had hoped. It gets ignored more often than not, and for pedestrians I had better luck with a standard bell.

I imagine the cars dismiss it as 'not a car horn' because it's a single tone instead of the normal dual tone sound of a car horn, and pedestrians dismiss it because its 'too loud to be anything on a sidewalk'. Sort of disappointing really, but not at all the fault of the manufacturer or seller.

If you do decide to get this, I would definitely suggest getting a standard bike bell as well.
3446307
this is a terrible piece of equiptment !!!  I can not hear even when I AM SITTING ON THE BIKE....It was advertised as a loud horn and it is very far from being acceptable.  Can I return for a refund or something that makes a  LOUD noise?
1747444
I like that it has the bubbling and vibration options except that it is soooooooo loud.  I have to turn anything I'm listening to super loud just so I can barely hear it over.
3309883
Hooked this up to our side by side, have a few beers, and drive around with it blaring like fools. This thing is REALLY loud.  Its one of those things that's hilarious when you're doing it, but annoying when someone else is doing it.
Bought the red/blue light bar with these, and scared the hell out of some kids down at a river one night. They all ran off into the woods thinking we were the police.
2002315
It's loud. It's plastic. Not many mounting choices as the cord is really short and the plastic mount only fits really small circumference handlebars. More of a toy than a real piece of cycling gear.
3747632
The product does it's job, but the main gripe I have is that it's waaaaaay toooooo loud! We live right next to an air station, and it puts an overhead flying aircraft to shame - the only thing missing is our house vibrating! Bought this for our baby, and it helps his breathing, but if it's turned on after he has already fallen asleep, it definitely wakes him up.
2437336
This is a very, very, very loud horn! Incredible how loud it is! I think this an incredibly good value.  I think it may help me in a tight situation.
472214
There is no way this is under 50 decibels. It sounds like a helicopter landing in your house.
2525953
I got this for my brother as a gift. It is extremely loud and has decent base. The fact that it's waterproof puts it over the top.
4878576
It's very loud.  I've had some dogs chase me on my bicycle and WHY I bought it.  It's much better than a spray that can MISS its' target.  IMO they could redesign the holster.  It's very cheap and flimsy.  The only way to use it is to wear a belt and clip it to the belt while on your cycle. This makes it annoying though because it's one more piece of gear you have to put on.  They could come up with some attachment to place on your handlebar and then you could grab the horn quickly to use it!  When activating the horn though you must use it UPRIGHT.  It won't work if the horn tips to its' side.  When I lived in this small town of 15K I showed it to my mail-carrier and he mentioned it to his boss and his boss ordered the "dog horn" for ALL the carriers in the town against unleashed dogs.  It was easier for homeowners to let their dogs run loose than to by a gun.  The cops didn't care.
1626056
Cant believe the sound from this unit. Unbelievable.
4203150
This thing is the length of my forearm and the diameter of my thigh, it's HUGE! And yet it doesnt feel like it. I measured loudness with my phone and it pumped out just about 3 dB louder than another sleaker I have that's just the size of my fist. It makes no sense why this thing is so big and is pumping out so little sound. On top of that it had the same sound quality as the fist sized speaker I mentioned... and that one was 50 bucks... I cannot comprehend how someone would have priced this at 99 bucks originally. I'm returning it, fo yourself a favor and don't buy it, even at the discounted price
1925537
This is one of the loudest I have ever heard.  It seems to work well, and is a nice small size.
628287
It has a very loud and annoying sound which can be heard far, which is exactly what I bought it for. Looks like it will last a long time. 4/5 because the strap is a bit crappy, but will do the job.
3791665
This thing is loud, as loud as a jet engine. Makes my games unplayable without headphones.

It at least does power the Xbox though/
508872
What I like about it is that it makes loud sounds similar to beeps of cars.
2660647
It has issues with operations as well. The sound is constant and extremely loud. My son doesn't want to play with it.