Taf Toys Koala musical mobile will entertain, but at the same time calm the baby while walking with a stroller. The carousel can be easily attached to the infant car seat or stroller. The mobile with 4 adorable tunes is complete with three soft toys: a snail, a koala and a rainbow. You can adjust music and volume. The combination of music and movement of the toy soothes the baby and promotes sleep. Powered by 3 AA batteries (not included).