• Fox 40 CMG whistle on a metal loop that keeps your hands free to handle the ball
• "Cushioned Mouth Grip" for safety and comfort
• Patented three-chamber design for faultless performance every time
• Cuts through crowd noise and travels a long distance
• Patented, pea-less design for loud, shrill penetrating power
• Crisp, sharp sound at 115 decibels