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- Fail - safe design eliminates the pea, creating a high-pitched penetrating, omni-directional sound
- 115 Decibels of high pitch shrill rises above ambient noise-can be heard up to a mile away
- 100% constructed of high-impact ABS plastic-So they're 100% impervious to moisture
- First choice of sports organizations worldwide - including the NFL, NCAA, NBA, CFL FIBA and FIFA
- Includes a safety neck lanyard that releases with tension
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