Soft, comfortable and flexible form-fitting fingergrip.
A referee whistle like no other!

Introducing the NEW Fox 40 Caul! The Caul is Fox 40’s first fingergrip-style whistle designed specifically to encompass a flexible fingergrip. Composed of a strong polycarbonate body with integrated over-mold CMG technology, Fox 40 has combined the pealess whistle and fingergrip together in one continuous design.

Dual-chamber pealess technology, combined with years of proprietary research and development, has resulted in a one-of-a-kind all-encompassing whistle and fingergrip. The Fox 40 Caul features a sleek design and highly-durable yet flexible rubber form-fitting fingergrip. Fox 40 has evolved traditional beat pea-style technology in to a pealess-style whistle without compromising the traditional harmonized trill tone. Crisp loud sound and extremely easy to blow.

Named "The Caul" in honor of the late John McCauley, former NHL Referee and Director of Officiating.

Design: Dual-chamber pealess
Sound Power: 110 dB