This helmet is really lightweight & strong. It comes with an internal rotational size adjuster, to achieve the perfect fit. Front and rear LED lights complete the safety package.
Features: * Safety: one-moulding process, the PC and EPS material, making the helmet more secure * LED back lights automatically light or standby according to the intensity of light, and the visible distance is over 180 meters * One button to control three lighting modes: shortly press the switch button to switch the light mode after booting: tide mode (light sense), flash mode (light sense), strobe mode (normally on) * Good ventilation effect: according to the aerodynamic principle, wind holes for ventilation and comfort * Long battery life: charging once, battery life can last for 36 hours, standby for 180 hours * A wide range of applications: electric bicycles, electric scooters, balance vehicles, roller skating, bicycles, etc. * Built-in 455mAh lithium polymer battery