Smart4u SH50 Waterproof Smart Flash Bike Bicycle Cycling Helmet Backlight Mountain Scooter Protector

Main Features:
● Safety: one-piece molding process, High strength PC, EPS raw materials, so that the helmet is more secure                                         
● Intelligent lighting: 7 high-brightness LED taillights automatically light or off according to the intensity of light, the visible distance is over 180 meters                                 
● Brake warning lights and automatic shutdown: when braking, all light are lighting for about 2 seconds. Remove the helmet for about 20 minutes, the helmet automatically power off
● One key control of 3 light modes: shortly press the key to switch the light mode after booting: tide mode, flash mode, flash mode                         
● Applications: electric car, electric scooter, balance car, bicycle, roller skating
● Charging method USB charging
● Charging time: 1 hour  
● Use time: 36 hours