Strong immediate sound with a rich, sharp and high pitch. DOLFIN PRO whistle's rich, sharp, high-pitched tone reaches every corner of the court, overcoming the deafening roar of a basketball arena.

Whistle features a tough polycarbonate mouthpiece with a vertical reinforcing rib. Whistle was developed exclusively for basketball referees who need the ability to remain mobile while holding the whistle firmly in their mouth.

• Pea-less whistle
• Best for Smaller & Quieter Audience, Standard Loudness (Easy to Blow)
• Tuned for Indoor Arena
• Strong immediate sound with thick and sharp high pitch
• Durable mouthpiece (Reinforced plastic with Vertical reinforcing rib)
• 4.10kHz&3.74kHz, 4 octaves
• Made in Japan