wireless listening and hands-free call with Bluetooth 4.0. With WIFI Hotspot Synchronization, Apps on the phone will be online as the visual you see simultaneously without network flow. With HD Camera, Ergonomic Design, Super Battery Life, you can enjoy yourself in outdoor activities. In addition, It can filter 98% Harmful Rays and give you a high clear vision and true color by blocking glare. It's perfectly suitable for driving, traveling, meeting, cycling and other sports, etc . It’s cool gla