Early Development Playground - The playmat provides a much Interactiveactivity center for babies, including 5 detachable colorful hanging rattles and graceful piano music which can be used for Lying, Sitting, Tummy Time, Kick，Play & Take-Along. They exercise the coordination of limbs, promote the development of the baby's back, and the development of fine movements of the hands; Little Music "Performer" - A key and a beautiful note of the baby gym will produce a beautiful sound when in piano mode. Rhythmic tapping or playing training develops the baby’s sense of music and hearing sensitivity and cultivates his artistic talent from an early age. You can adjust the angle of the piano board according to your baby's playing posture as you like, and your baby will have fun;