Normal 0 false false false EN-US X-NONE X-NONE Lot of 3 SCUBA diving/Boating/Marine Safety Whistles, We have sold more than 50,000 of this popular item*. May have brand imprint. HIGH VISIBILITY ORANGE Complies with SOLAS and EN394 / ISO 12402-8 Personal Flotation Devices, Fulfills USCG Audible Distress signal requirement Capable of producing over 100 decibels of sound to summon help in emergency situationsClip for securing on your belt, PFD, Buoyancy Compensator, Submersion suit, or life jacketLanyard hole to add your own lanyard Made from high impact polymer that is lightweight and noncorroding Ideal for Camping, Hiking, Boating, Hunting, SCUBA and many other activities. Perfect for EDC (Every Day Carry), your BOB (Bug Out Bag), as well as survival kits and emergency preparedness in general.Floats in Seawater. Polypropylene. Ergonomic feel. Size (L x W): Approx. 2.8 x .8 inch/ 7.2 x 2cm The sound from a whistle can be heard over a longer distance than yelling and a whistle takes less energy to use than yelling. A whistle is a signal device that works day or night and works in all types of weather. The international whistle signals are: Three bursts with a pause means "I need help", two bursts and a pause means "come to me", and one burst and a pause means "where are you?". You can also use a whistle to signal with Morse code, the most famous code is SOS (which means “I need help”) which is also an international code and it consists of: dot-dot-dot, dash-dash-dash, dot-dot-dot ( . . . - - - . . . ) .* Sold in our Survival kits and SOS beacon kits since 2015.Customs, Duties, Fees, and Taxes are NOT included for shipment outside of the USA and are the responsibility of the buyer