The Molten Dolfin F (RA0070) is a professional-grade referee whistle specifically engineered for football (soccer) and other outdoor stadium sports. It is recognized for its "sharp, high-pitched" sound designed to cut through the noise of large crowds and stadiums.
Volume: 124 dB at 10 cm, ensuring high audibility across the pitch.
Frequency: Dual frequencies of 4.15 kHz and 3.67 kHz across 4 octaves.
Design: Pealess (no moving parts inside), which prevents jamming and ensures consistent sound in all weather conditions.
Usage: Optimized for outdoor use and open-air stadiums; also noted for its ease of blowing and control.
