Sometimes, the only way to be rescued is to be heard. Invaluable for signaling rescuers. Boat safely and carry the necessary equipment. 2-level volume in a sturdy, loud whistle which can be heard while under water. Comes with Split-ring.

Features

• Very loud, works above and underwater
• Totally waterproof
• Ergonomically designed
• A necessity for all SCUBA Divers, hikers, police, military and coaches!

More info

3.25″L x 1.75″W