Emergency Whistle Colour:Silver This versatile filter kit includes

This versatile filter kit includes red

Resistant to water and sweat

Protection circuitry to prevent short circuits

Large side switch for easy selection of brightness levels

Emergency Whistle Colour:Silver This versatile filter kit includesThe Fenix NW20 Emergency Whistle is a life saving tool designed for maximum reliability. Its pealess sound chamber delivers an ear piercing 120 decibels with 30% less effort than standard whistles. Crafted from food grade stainless steel and including a Dacron lanyard, it ensures dependable performance in any survival situation. Easy blow design requires 30% less effort to reach a maximum 120 decibels Reliable performance from a pealess sound chamber