Features:<br />1.Adjustable earhook desigh allows the earphone fit on both LEFT and RIGHT ear.<br />2.Announce coming caller's phone number｣ｬwith voice recognition technology you can just say "Yes" to Answer or say "No" to Reject calls.<br />3.Sweatproof technology protects this Bluetooth headset from sweat｣ｬ and coffee spills｣ｬ so you can wear It in the office or at the Gym.<br />4.CVC 6.0 noise isolation technology intelligently filter wind or background noises｣ｬ enable clearer sound experience when calling in crowds｣ｬ and while listening to music.<br /> <br />Specification:<br />Bluetooth version: 4.1<br />Bluetooth range: 10 meters<br />Standby time:10 days <br />Talking time:6-8 Hours<br />Music Time:6-8 Hours<br />Charging Time:2 Hours<br /> <br />Packing list:<br />1* Headset<br />2* Earbuds<br />1* Backup earphone<br />1* User Manuel<br />1* USB charging cable<br />1* Pouch