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  • Does our Whistle work underwater?
    Yes! After you begin blowing the HyperWhistle, the air clears the chambers and allows the whistle to sound underwater. An interesting side note: Sound travels faster in water than in air, so the HyperWhistle frequency is higher underwater.
  • How do I join the Whistle Club?
    Very Simple! Just send in your picture to our Media. Just tag us Instagram: @hyperwhistleusa Facebook:@hyperwhistle Give us 2-3 days to process the image and then look for it on our Website, and Media pages.
  • Do we ship World-Wide? (International)
    Please contact us directly for International Shipping options. Email:
  • How do I contact the Company?
    Contact: Email: HyperWhistle 9301 Roberts rd. Woodburn, IN 46797
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