New VersionUpgraded HiFi sound quality and stable signal transmission. Lightweight, sweat-proof design provides portable use and allows you to enjoy sports fun during running, jogging, walking and more. Advanced Bluetooth CSR 8635 chipset gives you faster transmission and lower latency. Wireless range up to 10 m. Compatible with iPhone, iPad, Samsung Galaxy series, Android phones, tablets and more. ComfortIt is worn outside the ear instead of in the ear canal. You won't feel discomfort even if you wear them for a long time, and the ergonomic design of these headphones keeps them in place much better than earbuds when you're on a treadmill. Easy to useThe headset has 4 control buttons instead of 2 like in-ear buttons. The headset on the right side has controls for answering calls, raising or lowering the volume, selecting songs and playing/pausing. Experience true hands-free calling and enjoy music anytime, anywhere. The call is made in stereo and the call quality sounds like you're holding a phone. Long lifePerfect for exercising, jogging, mowing the lawn and more. Enjoy your music on the go all day. PortableThe sports headphones can be folded up in a pocket or small bag and can also be worn around the neck at any time. INDEPENDENT CPU OPERATIONIndependent CPU calculation, 80mhz intelligent calculation, intelligent music, fast sound conversion, music, voice accurate transmission out.