Highlights:<br />1.SWEATPROOF - S4 Bluetooth Earphones was designed for sports usage ｣ｬ <br />made by waterproof material｣ｬ ergonomic innovative and waterproof sweatproof design｣ｬ<br />Ensures this headset is comfortable and secure for sports ｣ｬrunning ｣ｬjogging ｣ｬwalking ｣ｬexercising｣ｬetc.<br /><br />2.BUILT-IN MIC - Stylish looks and built-in Bluetooth chip with HiFi Stereo earphones｣ｬ<br />ensures you could enjoy high quality stereo bass sound. Mini Portable Wireless headsets with built-in microchpone<br />and great Noise Cancellation produces clear loud sound｣ｬ convenient and easy to answer and end the phones. <br /><br />3.BLUETOOTH 4.1 - Bluetooth Version 4.1 supports hands-free with earhook｣ｬ<br />it could connect two cellphones simultaneously｣ｬeasy to pair.10 meter Bluetooth cover range. <br />Compatible with most Smartphones｣ｬ iPhone｣ｬ iPad｣ｬ iPod｣ｬAndroid Phone All Bluetooth devices.<br /><br />4.LIGHT WEIGHT - Light weight and coming with interchangeable ear buds and hooks｣ｬ<br />the headset will secure fit behind your ears and rest｣ｬSecure Ear Hooks Design with Cable Clips.<br /><br />Specification:<br /><br />Size: 72 cm<br /><br />Available color: Black｣ｬ Blue｣ｬ Red｣ｬ Yellow<br /><br />Bluetooth version: V4.1<br /><br />Support agreement: HFP/HSP/A2DP/AVRCP<br /><br />Wireless Range: 10 m<br /><br />Battery capacity: 70 mAh<br /><br />Charging time: About 1~2 hours<br /><br />Talking time: About 6 hours<br /><br />Music listen time: About 4~6 hours