Six core advantages: High decibel rate, high penetration, safe material, ultra-high value, easy to blow, with roller ball.
Suitable for occasions: Used for high frequency whistles in gym class, race track, party, traveling, calling for help, arranging formation, etc. Good sound permeability.
Design: The whistle channel is designed to blow moderately and whistle loudly to completely drown out crowd noise and natural environmental noise.
Quality: Easy to carry lanyard design, loud and clear whistle, smooth surface, high pitch decibel, durable stainless steel.
Applicable people: Adults and children can be used, the whistle surface has a polished treatment, smooth and rounded, no burrs, every time you use peace of mind!