Why swing when you can rock?! The 4moms rockaRoo infant seat flips the traditional swing on its head – literally – with the pivot at the base. It moves like a rocking horse to maximise 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 reversable toy balls. Babies like variety of motions and 4moms has now given parents more options, from the natural bouncing and sway motions of the mamaRoo to the rocking motion of the rockaRoo.