Smart chip driver:Chip-driven liquid crystal speed variable light, variable light more stable no flicker, more effective to protect your eyes from harm. Humane and considerate design:Comfortable to wear, easy and no pressure, long-term use is not tired. Circulate the outlet:Air circulation convection, ventilated breathable, not sneak, breathe naturally.
Special reinforcement:Turn naturally, durable. Adjustable vacant circle. Equipped with safety helmet.