Comfortable Design: Ergonomically designed flexible ear hooks with gel flex silicone earbuds to ensure your headphones stay comfortably firm in place. Neckband design prevents troublesome wires from tangling during your sport running exerciseto guarantee fatigue free ears and tangle free comfort.</br>High-Fidelity Sound: Bluetooth 4.1 wireless technology with CVC 6.0 noise suppression technology  connect seamlessly with all bluetooth enabled devices up to about 30 feet away. With noise cancellation technology focus on your favorite music and answer calls without skips or missed anyone and any words.</br>Wide Adaptability: Featuring latest Bluetooth 4.1 technology and state of the art acoustic components that work with about all smartphones tablets and music players. Latest Bluetooth 4.1 technology easy and fast pairing with smartphones tablets and other Bluetooth enabled music devices.</br>Incredible Working time: With built-in latest polymer battery. The earhook headphones provide an impressive 4 hours of talk & music playing time & 100 hours of on a single charge allowing you to play through a week!</br>IPX4-Rated Splashproof: This in-ear noise cancelling stereo earphones are rated IPX level 4 IPX4 can to prevent splashing from all directions of water intrusion caused damage to electrical appliances</br></br>Product Description</br></br><p><b>Easy to use </b><p>The function control buttons are designed for easy operation. Simply press it until the blue and red LED flash alternately to find and connect your phone?? then you can enjoy music or wireless calls.<p><b>Good performance</b><p>Bluetooth 4.1 technology and the latest generation