The 4momsrockaRooinfant seat flips the traditional swing on its head – literally – with the pivot at the base. It moves like a rocking horse to maximize a baby’s sensation of motion. At 70 percent smaller than a typical swing, it also is significantly less clutter. It features five speeds, a mp3 hookup and reversible toy balls. Babies like variety of motion and4moms has now given parents more options, from the natural bouncing and swaying motions of the mamaRoo to the rocking motion of the rockaRoo.