Strong immediate sound with a rich, sharp and high pitch.
DOLFIN B 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.
A unique beat tone is created by the interference of two different tones measuring 4.15 kHz and 3.67 kHz. 124dB at 10cm.