You just can't be unseen with this compact rear light with a German StVZO certificate. Choose a few modes of flashing or shining and mount it in a jiffy with its silicone strap.
+ choose the level of luminosity
+ montage is easy with a durable silicone strap
+ rechargeable via USB
+ battery: Lithium polymer 3.7 V/240 mAh, Size: 5.5 x 3.0 x 6.0 cm, IPX5