B11 Bluetooth Neckband || B11 wireless neckband earbud portable headset sports running sweatproof compatible with all android smartphones noise cancellation. High, medium, low noise, whether it feels harmonious, homogeneous. Your mobile phones, tablets, ipod or other supported devices using bluetooth technology and enables you to stream hi- quality stereo music. You can even make calls wirelessly using the in-built omni-directional mic. Its futuristic design makes you stylish and comfortable. Crystal clear audio with high BASS SOUND - everything you hear is in its richest tone and quality powered by bluetooth. Comfortable, ultra-light, elegant designed, this headset rolls several features into one. Enjoy your hands free calls and music at a distance of 10meter.