Fenix NW20 Lifesaving whistle

Stainless steel two-tone whistle, suitable for emitting distress signals in emergencies or life-threatening situations. Its extremely piercing sound in the frequency range of 3-4 KHz immediately attracts attention, even at a great distance. Referees will never again be asked if the whistle has been blown or not! And what’s more, the effort required to blow this little gem is 30% less than it takes to blow an ‘ordinary’ whistle.