Too small for easy use - Dave - 27/03/2016
There is no question that this is a beautifully engineered piece, however, it is just too small to easily use. The users lips prevent the air from escaping, its defo not a reliable option imho.
Great little whistle - Ludwell01 - 20/01/2012
Not cheep but really nicely made and pretty loud to boot. Brilliant on the end of a lanyard attached to a knife or torch. For an idea of scale You can see one in this britishblades thread with some other objects http://www.britishblades.com/forums/showthread.php?140179-Klarus-MiX5-flashlight-AAAA-batteries-not-included.