Material: Integrated PC hull, effective impact resistance, wear resistance and drop resistance. Thickened EPS lining with cushioning effect.
Lighting highlights: equipped with illuminated headlights + warning taillights, the headlights are in constant mode, the taillights are adjusted in three driving modes, constantly on, fast flashing, explosive flashing, safer driving at night .
Battery: 750mah rechargeable lithium battery, USB charging mode, can be fully charged in 2.5 hours, the most power-consuming mode can last more than 10 hours.
Optional size: there are adjustable knobs on the back of the helmet, M:head circumference:54-57cm, L:head circumference:58-61cm. To ensure you choose the correct size, measure the circumference of the head starting at the center of the forehead.