The first baby seat with Cruiz Ride Motion produces a gentle pulsing action designed to help baby relax and sleep. Add just-right seat ergonomics, soft fabric and a comfy head snuggler, and baby has the perfect spot to doze off, without getting in the car. When it's time to play, 2 activity toys and a large rearview mirror entertain! 8 songs and a nature sounds track offer pleasant music for 20 minutes with easy volume control for mom. Requires 4 D batteries.