Wireless Bluetooth Earbuds 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 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 inch tangle-free cord connects earbuds behind head, Flexible ear hook keeps PowerBuds securely in place, 10mm drivers pump out high-fidelity sound