The KTV Pro Smart Pair is the most advanced pair of cycling lights for commuters and cyclists looking for greatly improved visibility. The pair comes equipped with our Smart Connect wireless technology, which allows them to be quickly programmed and customized by the companion LED Ally phone app. Once programmed and paired, the front light wirelessly controls the rear light when toggling through its modes. Set up only the modes you need, with up to four mode-sets for a variety of cycling settings.