Preferred Whistle of Volleyball Officials

• The Fox 40® Pearl® is perfect for those who don’t need a loud piercing shriek, yet want a blast above man-made and environmental noise.
• Different lower tone is ideal for multi-games in the same site or gym.
• The harder you blow, the louder the sound.
• Easy to blow and cannot be overblown
• Will be heard above ambient noise and loud crowds.