Feature:
1) Large built in clip makes it easy to attach to backpacks, life jackets, belts, pants, bags etc.
2) Built in hole at the back that can attach to lanyards & key rings.
3) Extremely strong, light weight and slim in design
4) Modern pea less whistle, meaning no moving parts to freeze, jam or deteriorate over time
5) Floats in fresh and salt water making it easy to find in emergencies
6) Chambers are designed to self-clear when submerged in water
7) Flawless, high pitched, consistent sound which is louder than a conventional ball whistle