The design of hockey referees' whistles have not changed much over the years, while hockey players enjoy new, lightweight, more comfortable skates and padding. The Caul referee whistle for Fox40 is a side firing 2 chamber design with a sound that mimics the traditional pea whistle. The whistle design eliminates the cold, knuckle- cutting metal finger band and replaces it with a comfortable, one-size- fits-all, overmolded elastomer, making life a little better for the guy with the striped shirt.
