360° open-ear immersive sound field liberates both ears: QJF smart bluetooth glasses using open audio technology, directional sound wave transmission, creating 360 ° surround sound, music, call clear into the ear Outdoor wear can sense the environmental sound, to protect the safety of sports, commuting, long wear without pressure. Bluetooth 5.4 & Hi-Fi Sound Quality: This pair of smart photochromic sunglasses is compatible with various for iPhone and Android models, offering a faster and more stable connection. Open-ear speakers allow you to enjoy music and calls while staying aware of the surrounding environment. Polarized Lens: The polarized lens can show the most reality and colorful world to you. Increasing contrast and deepening perception, thereby protecting your eyes perfectly, ideal for partly cloudy to sunny conditions, also good for cycling, fishing, running, climbing, etc. Curve & Wider Design: Wider lens can not only provide more bigger field of vision, also more windproof, Curve design lens have low air resistance which is suitable for high-speed riding. 100% UV Protection Coating : The cycling sunglasses use of polycarbonate HD coating mirror lenses.Cycling glasses have a 100% UV400 protective coating that blocks harmful UVA and UVB rays,eliminates glare and reduces eye fatigue, and protects your eyes from sand, insects, wind and sun. and is more dust-proof, wind-proof, and better protects the eyes from insects. Portable Design: This smart eyewear is incredibly lightweight, suitable for both men and women during various outdoor activities—cycling, motorcycling, running, skiing, baseball, volleyball, tennis, driving, triathlons, fishing, mountain climbing, softball, rock climbing, hiking, golf, trekking, boating, and more. Smart Cycling Music Glasses, Sport Bluetooth Glasses with Open-Ear Headphone with Speaker, Clear Safety Polarized Sunglasses Men Women, UV Protection, Voice Assistant, for Running Driving Finishing