Advanced Bluetooth 4.1 technology provides high-fidelity stereo sound and clear speech let you get high quality and clear voice</br>Built-in HD microphone with noise cancellation that reduces background noise let you enjoy your music</br>The hands-free kit provides a simple solution for answering ending rejecting redialing phone calls and streaming music from your device</br>The light weight flexible and comfortable design avoid any pains after hours of wearing and 3 ear tips of different size</br>Compatible with apple iPhone iPad iPod Samsung galaxy android smartphones and other Bluetooth enabled devices</br></br>Product Description</br></br>High-fidelity stereo sound:   The advanced Bluetooth 4.1 technology provides high-fidelity stereo and crystal clear sound let you get high quality sound and enjoy your calls videos or music very clearly and perfectly. It can connect with 2 cell phones at the same time both them let you enjoy the stereo and crystal clear sound.    Noise cancellation technology:   Built-in HD microphone with noise cancellation that reduces background noise so that you can listen music or answer phone calls even in noisy environment like running on the road?? walking in the street?? playing in the playground?? etc. It's perfect for runner?? music lover?? gymnast and driver.   Hands-free design:   The special des