See reviews @ http://www.amazon.com/gp/product/B0029F1O72?&tag=mdaydaily-20 From the Manufacturer
Space Symphony Motion Gym encourages visual tracking and gross motor development. Unique music and motion feature brings toys to life for auditory and visual stimulation that engage baby longer. Features include: Fun space-themed music engages baby as the arches gently sway; rocket toy jingles, crinkles, and ‘soars' when linked to the swaying arches; 4 space characters have high contrast faces and fun sounds to get baby smiling; large sun tummy-time mirror with shiny ribbons is great for self discovery; large, cushioned mat is machine washable; 15 minutes of music and motion; gentie mobile-like motion promotes visual tracking; arches sway while music plays.