Amphicom's quirky new Aqua FM snorkel radio ($129) uses bone conduction technology to transmit music into your ears while you swim–no headphones necessary. A tiny antenna runs up the snorkel barrel and out of the water so you can tune in the entire FM band. Just bite down lightly on the snorkel's mouthpiece and vibrations from the radio signal are transmitted through your molars and jawbone to your skull, where they vibrate the bones of the middle ear. From there, the vibrations stimulate the fluid and tiny hair cells that connect to the auditory nerve, which transmits the signal to your brain. The result: music piped into your head like your own personal Muzak system. If it sounds freaky, that's because it is-but it actually works. Volume and tuning controls are mounted on the front of the mouthpiece, with a seek button that finds the strongest radio station signals.

140 years of Popular Science at your fingertips.
Each issue has been completely reimagined for your iPad. See our amazing new vision for magazines that goes far beyond the printed page
Stay up to date on the latest news of the future of science and technology from your iPhone or Android phone with full articles, images and offline viewing
Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed
The 6th annual Invention Awards are here, from an inflatable tourniquet to a better lobster trap to spring-loaded hocket skates. This issue is all about the celebration of invention.
Plus: Making synthetic biology breakthroughs in a garage, building a constantly-moving ping-pong table, and a ridiculously overpowered barbecue.