ACME genuine No. 636 Tornado slimline AIRFAST Whistle. BPA free plastic. Small-sized. High-pitch. Pealess. 122 dBA. Designed and made in the UK

I've owned many whistles over the years. I commute by bike and a whistle is the only practical way to be heard inside a car or through headphones. A polite bell just doesn't do it. This whistle is light enough to carry in my lips and its loud enough to do the job of alerting pedestrians and drivers to stop their wandering ways. It also works to repel chasing dogs and aggressive panhandlers. Its not the loudest whistle I've ever used but it's the loudest compact whistle I've used. I also keep a glow in the dark one on my keys and it lives there unobtrusively. As one might expect of a keychain, it only sees a few minutes of light a day, yet still manages to glow softly all night. This is great as a small light also lives on my keys and this whistle makes it easy to find in the dark. I've used my whistle several times to diffuse potential muggings by looking at people suspiciously following me straight in the eye and whistling my fool head off. Let me tell you it attracts attention which is exactly what that kind of person doesn't want. This is totally not going to work if you're clueless or wait until they're right up on you and can silence you permanently.

I bought this product to hang in my key chain on my motorcycle. I like how small and compact it is and best of all, it looks really good, with the green colour. The photos I attach will show you how compact and small it is compared to a regular flash drive and iphone earphones.As far as functionality of the whistle goes, it is very loud. I did read through the reviews of people who said it wasn't loud. But I can assure you that this if blown right, it can be so loud that it will irritate your ears.Blowing this whistle reminds me of my kiddie days when I had a whistle and played with my friends. I don't know when I will use this but I just thought it will look cool on my motorcycle key chain.I liked it so much that I have added another one of these to my cart. I would definitely recommend this product to anyone looking for a very loud and good looking whistle.

The good: Moderately loud, lightweight, compact. It has a high pitched distinctive trill that makes it easy to identify as a whistle and cuts through background noise. Works well in the water (SOLAS approved).The bad: Moderate effort to reach full volume reduces it suitability as an emergency whistle. The ACR WW-3 and ACME 660 will match its output with less effort. Fairly high pitch reduces its range in wooded areas.Overall: Good signaling whistle for medium ranges. Adequate as a marine or urban emergency whistle. There are

What can I say? It glows in the dark, attaches to a cord of my choice, and makes an ear-piercing sound when blown, even when wet. That's all I could ask for from this safety whistle, really.I noticed that some people said it's tough to blow on whistles of this type, but I didn't have to try hard at all. One word of caution: It's LOUD and HIGH-pitched. (I believe it has a dual pitch, but I couldn't stand to listen to it long enough to determine that.) If you plan to blow it indoors, I recommend ear protection. My ears hurt after 2 tries. Poor dogs in range of this thing will go nuts!The one thing I didn't like about the whistle is that it didn't come with an attached cord. Minor detail, and I'm sure some people prefer it without the cord since it can also be attached to a key chain, zipper, or anything else with a loop.

It takes a good puff to get a loud sound out of this whistle, however after some practice, even my three-year-old can managed a good string sound! We bought them for our children to play outside and be safe if there were an emergency. I like the price and the quality and would repurchase these whistles.

I purchased these due to great reviews. I'm not sorry. These will be used on our vacation. We're cruising so we will have lanyards for our ID's and these will fit nicely on them. I have a special needs child and if he gets separated from me for any reason, he will know to blow his whistle and I will be able to find him. This is very loud and I can hear the pitch. I have inner ear damage and some decibel levels and pitches I can't hear very well. Certainly not the case with these little guys. I can hear this very well and my child can blow easily into it and not have to force his breath to make it work. The sound carries for distance also. For families with children, I can think how these may be invaluable. Especially if you have a child/ loved one who is non-verbal but who needs a way to alert others of danger or separation. Thank you for such a great item. It's one of the most important things I will carry on this trip and many others to come.

I got this for two reasons.1.) To completely annoy drunks at a bar I work At.2.) To keep in my outdoor gear for emergency signalling reasons.It's so loud that I have to plug my ears to comfortably blow it full-force!It's also become the Bane of those drunks existence, they'd fight me, but I'm the bouncer.Semi-cons...While its construction is more than durable enough to survive hard drops and long falls onto rocks (I've done both)Due to its construction, I wouldn't give it crushing force anytime soon.It is lightweight. Which is mixed.It's great for weight reduction as far as your gear goes, but it also means you don't have as much tactile feedback if it's in your pocket.Personally, I just Put a lanyard on it, and try not to step on it.