Features: - 8 hrs playtime / 9 hrs talk time / 240 hrs standby time - Built-in microphone for hands-free phone calls - Connects via Bluetooth® 4.1 wireless technology - Rechargeable via any USB power source in less than 2 hours - Includes interchangeable earbuds to create a personal best fit - Nano coating adds a water resistant & sweat-proof layer - 22″ tangle-free cord connects earbuds behind head - Flexible ear hook keeps PowerBuds securely in place - 10mm drivers pump out high-fidelity, skip-free audio - Packaged in a soft neoprene zipper case