Ordered for a Christmas gift on November 28. Finally got them delivered a few days before Christmas. My son opened them and wore them for a bit they quick working within a hour or two. Company will not replace or refund! They did send one battery to see if that would fix the problems. One battery for two shoes. And the battery is not the problem. Huge rip off. Hope they go bankrupt in 2018 so they will have to stop ripping people off. I would have given 0 stars if that was a possibility.