[Noise Cancellation]Bluetooth Sports Earphones, Wireless Stereo Headset with Soft Ear Hooks.Sweet-proof Headphone Ideal for Running, Jogging. (Black) Great noise cancellation process. Super clear sound quality, providing a comfortable and dynamic listening experience. You can get great listening experience even in noisy environment. Super humanized Design. Come with one pair of soft and lightweight ear hooks. Stable and comfortable , you will not feel any uncomfortable even long time use. Support hands-free calling, CVC Noise Cancellation 6.0 technology enable clearer sound from microphone, hands-free phone conversation even on the street or inside shopping mall. 60mAh rechargeable battery support about 200 hours standby time or about 4 hours playing time(The volume will effect the time). 10 meters wireless range. Pair in seconds, just hold on the function key about 3 seconds. Works seamlessly with most smart phone.