- World’s most powerful pealess whistle
- Features two high pitch frequencies for loudness and a lower pitch for distance all sound simultaneously
- Recommended for referee’s in big stadiums or anywhere that requires a loud sound
- Used in FIFA Internationals, F.A. & Champions League Matches and FIMBRA & FINA Matches
- Dimensons : 5.5cm (L) x 2.8cm (W) x 2.7cm (H)
- Sound power exceed 125 dB
- Vendor: nurulain
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