PROMEND TK-12H15 Mountain Bike USB Magnetic Goggles Helmet With Warning Light, Size: L(Black Red)

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