No More Putting Your Mouth On It - No More Metal Freezing Your Lips In Winter Or Hazardous Environment. Electronic Whistles Work At The Push Of A Button. The Portable Whistle Works Perfectly For Your Youth League When A Standard Mouth Whistle Will Not Work With The Facilities Protocols In Place. You Can Also Talk Without Having To Remove The Whistle From Your Mouth. You'Ll Be Using It Right NowThree Distinct Tones Loud Enough - Equipped With Three Sound Levels Up To 1255Db, Which Is Enough For Use In Noisy Environments As Loud As The Regular Whistle. You Can Choose The Best Sound According To Your Needs. Suitable For Any Sporting Events, Corporate Activities, Birthday Party, School Play, Hiking Or Other Emergency Etc. Please Be Assured That The Electronic Whistle Has A Switch Button, If You Stop Using It, You Can Choose.Easy To Carry: It Comes With A Lanyard And A Storage Bag, So You Can Easily Pass It Through Backpack, Sailboats, Camping Gear, Hiking, Life Jacket. You Can Also Clip The Whistle To Your Belt Or Suspenders For Quick And Easy Use In An Emergency. The Thickness Of It Fits Firmly And Nicely In Your Hand.Excellent Quality, Hygienic, Durable: Less Subject To Wear And Has A Longer Lifespan, Made Of High Quality Abs, Environmentally Friendly Environment, Tasteless And Healthy. Heavy-Duty Anti-Split Design, Makes This Electronic Whistle Sound Loud And Consistent.4 Batteries Included. Includes 4 Cr2032 Batteries, Which Can Be Replaced And Used Two Batteries Each Time.