The 4moms mamaRoo4 infant seat bounces up and down and sways from side to side, just like parents do when comforting their babies. Select from five unique motions, four built-in sounds, and five speeds. The seat reclines to multiple positions to allow baby to lie back and relax, or sit up and play. The mamaRoo4 is also Bluetooth enabled, so you can control the motion, sound, speed and volume from your compatible smart device. The overhead toy mobile now includes interactive, reversible toy balls. Keep baby’s attention with the sound of the crinkle ball, rattle or reflective mirror ball.