With the press of a button, calming vibrations will help soothe and comfort your baby. When it is time to play, two rainforest animal friends on the removable toy bar. For babies: 0+ to 9 kg! Calming vibrations and music. Removable toy bar. Removable and washable cover. Adjustable 3 point harness. Easy folding for transfer or packing. Uses 4 alkaline AA batteries, which are not included.