"One of the annoying things about swimming laps: you can't bring your playlist along. At least that's what I thought, until I got the chance to try Aftershokz Xtrainerz ($150) after the company sent me a pair. They're waterproof and designed for comfort and sound quality while swimming. The speakers sit just outside your ear so you can still wear earplugs if you choose; the headphones come with a great pair, and wearing them makes the sound quality even clearer. You load the music directly onto the headphones (no Bluetooth, so you don't have to worry about keeping your phone nearby) and can easily switch songs and adjust the volume with buttons right on the headphones. No more singing to myself to make the laps pass by!" — MR