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Fox Fintergrip Caul Official's Whistle | Sound Power 110dB


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.
  • Design: Dual-chamber pealess.
  • Sound Power: 110 dB.