The dual motion developmental mobile is the only dual-motion mobile, with a unique peek-a-boo movement. The adorable jungle pals play hide and seek with baby. A playful piano box plays soothing melodies for baby, playing 15 melodies in 30 minutes of music. The mobile can easily be switched from standard mobile motion to a peek-a-boo motion to moderate the stimulation level based on baby"s mood. As baby grows, the piano box can be used as an independent piano toy without the mobile arms, extending the life use.