Whistle
Estimated value as of 2026 · Average from US retailers like Academy Sports, Athletic Stuff, and Select Sport (e.g., $2.99-$6 for common plastic/metal whistles)
A sports whistle is a small handheld device used by coaches and referees to signal during games in sports like soccer, basketball, and football.
Fun fact The popular Fox 40 whistle is pealess, meaning it has no cork ball inside, making it more reliable in wet conditions and easier to sterilize.
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