SUNVITO Sports Wireless Headphones, Bluetooth 4.1 in-Ear Stereo Magnetic Earphones Hands-Free with Mic,Sweat-Proof and Ergonomic Design (Black) Latest Bluetooth 4.1 Technology:V4.1,with CSR8635 chipset.Improved data transfer,fast and easy pairing and a 10-meters working distance,powerful audio driver offers balanced audio and crystal clear sounds Magnetic Design: Bring it anywhere with you with its cool earbuds magnetic design which you can wear like a necklace. Convenient and ideal for sports,jogging,exercise and other activities Long Life Battery Capacity:About 5 hours talking,4-5 hours playing time,2 hours charging time, 180 hours standby with a single charge, so you have less time charging and more time doing Sweatproof Protection:Designed for sport use,sweat at the gym & run in the rain.Ergonomic innovative design ensures this headset is comfortable and secure for running,jogging,Biking,driving,fishing,camping,hiking and other outdoor sports or even relaxing at home Compatibility: Universal compatible for but not limited to Apple iPhone 6S 6S Plus iPhone 6 6 Plus 5 5S 4 4S iPad iPod Samsung Galaxy S6 S5 S4 S3 LG Motorola Sony and iOS/Android mobile phones. Almost all smartphones can work with this well