Fitness HealthFH Pro Sports Whistle with Lanyard - High Pitch Instant Response Referee Whistle

Good. Does as said. Strap is weak though so I surgest you use another / but a more sturdy clasp

I use this within my job when outside with the children

It's only good for a childs play whistle where you don't want them to make a lot of noise! It doesn't matter how hard you blow, it just makes the faintest noise!