Referee whistle - Loud and clear sound
The referee's whistle has no high-frequency core, clear and strong, with no core, the whistle has high permeability and can reach high frequencies and high decibels.
Double air chamber design The referee whistle is equipped with double air chambers, which is easy to blow. The professional referee whistle with dual air chambers has a high volume and high sound penetration.
The referee whistle kit includes an adjustable nylon hanger, the hanger can be easily rolled up through the loop and the length of the hanger can be fixed with double balls without fear of losing or falling off.
[Matériau de sécurité] the referee's whistle is made of ABS resin, combined with macromolecular materials, is non-toxic, tasteless, healthy and safe, has a long service life and can be used in complete safety.
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Product return within 14 days
The referee's whistle has no high-frequency core, clear and strong, with no core, the whistle has high permeability and can reach high frequencies and high decibels.
Double air chamber design The referee whistle is equipped with double air chambers, which is easy to blow. The professional referee whistle with dual air chambers has a high volume and high sound penetration.
The referee whistle kit includes an adjustable nylon hanger, the hanger can be easily rolled up through the loop and the length of the hanger can be fixed with double balls without fear of losing or falling off.
[Matériau de sécurité] the referee's whistle is made of ABS resin, combined with macromolecular materials, is non-toxic, tasteless, healthy and safe, has a long service life and can be used in complete safety.