Super loud survival whistle Double tubes emergency whistle can provide up to 120 decibels, enough to be heard at long distance.
Good Environmental adaptability The whistle has no built in pea, it will not mold or breed bacteria because of the pea.You can use it in any dust or dirty water environment
Water-resistance cing whistle Made of aluminum alloy Anti-Oxidation and Durable.Can be used in all-environment all-weather with excellent air flow design.
Easy to Carry The whistle is little and lightweight, with a key ring that can be hung on a strap or keychain.
Package Includes:3 Pieces (GOLD,SILVER,BLACK) Emergency Survival Whistle.