Tornado 2000 is the loudest whistle in the world. With its specific design (without a ball) it can produce high frequency tones that carry through the most distracting background noise and low frequency tones that can be heard from very far away. Unmatched in performance and, by now, not only valued by emergency units (S.O.L.A.S.) as emergency signal and communication tool, but also by all kinds of sports organisers, e.g. at the Champions League (F.I.F.A.). Of course, it is waterproof and weighs only ca. 10g. Bright orange.