Bluetooth Headphone,V4.1 Wireless Stereo Sports Earphones Headset In-Ear Noise Cancellation Earbuds with Microphone for Running (Black) Latest Wireless Bluetooth 4.1 Technology with High-Fidelity stereo music and clear speech, good ideal for high quality music while running,jogging,cycling,skating,hiking,etc Fully exercise-proof: Sweat-proof ,earpiece design, portable and lightweight wireless headset can be stay in your ears comfortably,our headphones will let you enjoy music through a variety of activities Adopt the most advanced bluetooth CVC6.0 noise cancellation,can accurately distinguish the difference between voice communication and noise,and judge it,makes you still enjoy a clear sound when you are in the noisy occasion Simple-to-use :Just say "Yes" or "No" to pick or reject call.Realize the true meaning of handfree. Combine with Voice reminder function ,Prompt the newest state of headset with vocal.Play/pause (also answer/hang up/reject/ Callback calls), Vol +/-, and next/previous track buttons, super easy operation, good workmanship Works great with almost all tablets and smartphones that utilize Bluetooth technology.Supports: HSP, HFP,A2DP, and AVRCP Technologies