No question, the taillight looks chic and offers with its many settings (which must be clicked through a bit cumbersome) some options. However, to install the batteries requires an amazing dexterity, since the rubber sheath can be separated from the plastic inner housing with difficulty and always afraid that the rubber sheath tears.
Tolerable would be if you had to make it rarely: My Knog sucked after a short time, however, even when turned off the juice from. That's not at all times.
