Polarized Smart UV Protection Polarized lenses allow you to clearly see the road conditions without being disturbed by glare improved filter technology to reduce glare effectively filter out stray light antiglare strong glare UV protection vision protection Strong impact resistance easy to clean and durable Voice assistant function for calls music navigation Bluetooth sunglasses Builtin HD noise reduction microphone easily connect your various devices handsfree to access calls openear speaker style with highquality bilateral stereo sound speaker semiopen sound chamber for accurate and clear sound transmission into the ear keep it private and enjoy the stereo sound of nature Podcast navigation listening to music audiobook etc safe convenient versatile Use of Bluetooth sunglasses Aftersales warranty Essential artifact for driving traveling camping fishing hiking cycling mountaineering vacation Charging for 15 hours working for 5 hours You are fully covered by our 3month WARRANTY and 30day MONEY BACK GUARANTEE Lightweight and comfortable to wear fashionable delicate design the glasses weigh only 34g 45° spread temples perfect for all face shapes it will not hurt to wear them for a long time Integrated nose support design fits the nose reduces impression makes you feel more comfortable IPX5 Waterproof Supports waterproof dustproof and sweatproof functions and has professional performance that can effectively resist sweat and rain even in rainy days or outdoor activities