1. One-piece design, adjustable head circumference 2. Widen and enlarge the goggles, freely switch and install the lens at will 3. Magnetic silver-plated eye protection lens 4. Streamlined vent structure, reducing wind resistance and not stuffy 5. Rear high-brightness USB charging warning light 6. 9 kinds of LED lighting smart mode 7. Detachable and washable sweat-absorbent lining, can be washed repeatedly 8. Power supply mode: USB charging 9. Taillight battery capacity: 180mah 10. Material: EPS+PC 11. Size: L (head circumference 57-62mm) 12. Weight: about 318g
