Name: Light helmet, Cycling Helmet, Bike Helmet, Bicycle helmet.
Power: USB charging.
Feature:Ultralight, Integrally-molded, Insect net helmet.
Function: Water repellent, Shockproof, Safety.
Battery:2000 Milliampere With CE certification time: -- Mighty about 4 hours-- Low about 9 hours-- Flash about 24 hours Only side & rear warning light about one month
