Coaches and Referees 2-Pack Metal Whistles with Lanyard. Extra Loud Whistles Great for All Sports Including Football, Swimming, Soccer and for Lifeguards. Long Lasting and Will Operate Even When Wet. USE: Great for all Sports During Competition or Practice (2-Pack) FUNCTION: Loud and designed to alert and diffuse LIGHTWEIGHT: Easy to carry and works everytime USE as a primary or backup whistle as well to share BONUS: Will Work When Wet