Electronic Whistle Rechargeable for Referees Coaches Teachers Electric Whistle Handheld Whistles with USB Charging for Outdoor Sports Games Emergency Whistle with Lanyard 4 Tones High Volume, Blue

I like the adjustments to different sounds and volume controls. The whistle gets plenty loud for sports or in a gym full of kids. Charging is easy and it holds a charge a long time. I’ve dropped it a few times and it seems durable. I recommended this and it is much better than the old blow whistles…

Bought this for our schools coach to use instead of a typical whistle. Works well. Sounds are pretty shrill but gets your teams attention when you want it to. I'd recommend.

It is a very loud whistle. Great for football coaching, I only wish that it was more compact.

This "whistle" is now my bike horn! I love the three tones and the three levels of volume. It is much louder than I expected, which is great. I had to rig it in a way to have it sit on the handle bars so maybe the company will consider a bike model in the future. If you want to try this yourself, the biggest hurdle is the whistle is cylinder shaped so the round bottom presented a challenge.

Good selection of the three tones, is particularly loud, rated at 125 decibels. I coach at a swim pool and need to be able to have the athletes hear the whistle in the pool even while head submerged. This has worked great. I would like to find something water resistant but this does have a neck band.

Rechargeable is the only economical way to go with these whistles. This one is not only rechargeable but also has varied tones, volumes and a nifty light and it's only a couple of bucks more than my previous one, which took very costly batteries that had to be changed out every few days.

My daughter likes the whistle for refereeing at club volleyball tourneys. It works great and keeps a good charge for a couple of tourneys without needing to be charged. Worth buying!

I was able to use this whistle for 2 days. Then it stopped working and will not charge. Waste of money