★Strong and Durable - Made of premium aluminum alloy material,it will last you a very long time
★Light and Portble - You can put it in a bag and pocket,or hang it on a keychain and backpack zipper
★Good Environmental adaptability - The whistle has no built-in pea ,so it will not mold and breed bacteria because of the pea.You can use it in any dust or dirty water environment
★Very Loud - Double tube design can make sounds up to 118 decibels.You can save 30% energy than normal whistle when you get the same db
★Multi Purpose Whistle - Perfect For Referees Officials Coaches,Training,Sports,Teacher,Lifeguard,Life-saving ,Protection,Hiking,Camping,Wilderness survival,Emergency,etc

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 1.57 inch
Height : 0.59 inch
Length : 3.54 inch

Item Weight: 0.48 ounce (View shipping rates and policies)
Shipping Weight: 0.8 ounce (View shipping rates and policies)

ASIN : B01DLRPLOS