The FOX 40 SHARX whistle is flawless because it has the distinctive design, consistent performance, has an effortless sound power. It is used by sports professionals, rescue teams, boats and safety for individual use, which can be used in dry or wet weather conditions. Decibels: 120 Plastic Whistle: Non-Toxic. Manufacturer Warranty: Against manufacturing defect. Origin: Imported from Canada. Gift: FOX 40 Custom Whistle Lanyard.