Product Detail:Brand: ROCKBROSName 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 MilliampereWith CE certificationTime: -- Mighty about 4 hours-- Low about 9 hours-- Flash about 24 hoursOnly side & rear warning light about 1 month
