Multi Mode Music With Colourful LightsDevelopmental benefits for your kids,have 3 grow stages for kids:1)Lay & play2)Tummy time3)Sit & playKeep your baby happy while laid on this Beach & Tropical Print with a built in piano.According to the different months of development your baby can lay down to play then as they grow they can then sit up and play.Piano can Be remove from Playmat and can Hang to Baby Crib While Using Baby Sleep Treasue.Moveable toys on the overhead gym encourages baby to flap and grab while laid on there back.Can exercise baby?s sense by sight touch and soundSoft & comfortable mat3 x AA Battery Required(Not Included)Material: Made of ABS and fabricSuitable for 0-36 months baby