Great whistle. I've had the genuine British police whistle, which is loud and shrill and has a medium-high pitch. This whistle is a good alternative - it's at least as loud (very loud), but the pitch is much higher, so it's more of a scream than a shout - also a good thing.
Edit: I've given up and gone back to the British whistle. This seems like a great whistle, but I could never get anyone's attention with it.
Edit: I've given up and gone back to the British whistle. This seems like a great whistle, but I could never get anyone's attention with it.