Frequently asked questions
Does our Whistle work underwater?
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.
Do we ship World-Wide? (International)
Please contact us directly for International Shipping options.
How do I contact the Company?