The Sonic Wii Remote Charger was produced by a company named Mad Catz, licensed by Sega.
It is able to charge no more than two Wii remotes at the same time, while a six-inch figure of Sonic stands over them. Also, Sonic stands on a small platform that looks like Green Hill Zone. It gives up to fifteen hours of play time for the Wii remotes. It is available for purchase at Mad Catz's web store for $49.99.