Listen to your favorite songs during any workout with the Flyer Wireless Fitness Headphones from Fitbit. These in-ear headphones are built with fitness enthusiasts in mind. Featuring 8.6mm drivers, adjustable sounds profiles, and Bluetooth wireless connectivity, the Flyer delivers crisp, clear audio and deep resounding bass to power you through all your workouts. Adjusting playback is easy thanks to the in-line, 3-button control box; you can even take calls with a simple button press.Because it's fitness focused, the Flyer comes with a special hydrophobic nano coating that keeps it rain, splash, and sweatproof. The built-in rechargeable battery lasts up to 6 hours on a full charge, while a quick charge will give you up to an hour of playback on only 15 minutes of charging. Multiple sizes of ear tips, fins, and wings are included, so you can customize the fit to best suit you and your activity of choice.