Because Bluetooth works poorly in water, swimmers have had few options beyond MP3 players (remember those?) when it comes to audio. So startup Zygo took a whole new tack, developing the first submersible headset that receives radio frequencies from a poolside FM transmitter, which in turn is paired with your smartphone via Bluetooth to support streaming. Using bone conduction, the headset plays music or podcasts through the zygomatic arch, a slender temporal bone near the ear canal. An optional Zygo app subscription offers guided workouts from swim coaches. Zygo co-founder Charlie Melvoin says the company wants to bring swimming into the connected fitness realm to make it more accessible. “The best compliment we get from people is, ‘I never would’ve swam 30 minutes or an hour before, but that flew by.”
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