... ; 4.Visible from over 1km; Introduction of Bicycle Laser Tail Light1.Introduction of Use As to the city ... lights to complete 3 shining ways,but also 2 laser lights at a 120 degree angle project two ... can double insure you riding safely.2.SpecificationArticle: Bicycle laser tail/rear lightShell Color: Red,green,blue and ... ,it is off.4.PackageA bicycle laser light,a piece of USB data line,a 3.7v charger,2 ...