The outer case is made of special eco-friendly elastomeric material. It can be fixed on a circular or non-circular tube of the bicycle, or on the bicycle helmet. With unique structure design, it can also be tied on the arm or ankle, with a velcro band, strap, or belt …etc, passing through its outer case. It can be tied on the strap of a knapsack as well.
| TYPE: | Rear |
| POWER SOURCE: | Batteries |
| MODE: | 2 levels |
| Weight: | 0.020 kg |
