The Worlds most Powerful Whistle;Two high pitch frequencies for loudness close to the whistle and a lower pitch for distance all sound simultaneously;Recommended for Referee's especially in big stadiums or anywhere that real power is required.;As used in FIFA Internationals, F.A. & Champions League Matches FIMBRA & FINA Matches

• Acme Tornado Day Glo Green-The World's Most Powerful Whistle

Acme Tornado Day Glo Green-The World's Most Powerful WhistleAcme(J Hudson(Whstles)Ltd