Introducing our new running smart sunglasses with the latest Bluetooth 5.3 technology, making them the perfect accessory for your outdoor activities. This innovative feature allows for easy pairing with your phone, providing you with access to calls, music and GPS directions. The open-ear speaker design delivers superb sound quality while still keeping you alert to your surroundings, making them great for runners, cyclists and outdoor enthusiasts alike. The polarized lenses offer superior UV400 protection, shielding your eyes from harmful rays while also enhancing clarity and reducing glare. With our smart glasses, you can enjoy up to 5 hours of call time, 5 hours of music playback and 50 hours of standby time. What's more, our glasses conveniently feature a USB-C fast charging port and 130mAh large battery which can be fully charged in just an hour. Our running smart glasses boast istant technology, allowing for hands-free calls and real-time updates on directions, weather and traffic. You can even interact with Siri, Cortana, and access your favorite music platforms like Spotify, iTunes, and Pandora with ease. The Tulbeys baseball smart sunglasses are thoughtfully designed to fit any face shape comfortably. Engineered with TR tough frames, the glasses are both durable and lightweight, weighing in at only 44g. The soft nose bridge design reduces the burden on your ears and nose, and makes them comfortable enough for rigorous sports like cycling, running, and more. No matter what outdoor activities you enjoy - from cycling, motorcycling, skiing, snowboarding, golf, hiking, tennis, to boating - these sports samrt sunglasses are perfect for all your needs. Should you have any questions or concerns, please contact us immediately!