Being pregnant again I can not judge its effectiveness on calming our baby (this will depend mostly her). However the product arrived quickly and well packaged. It corresponds to the given description. Only small downside, the music deserves to be improved because the sound is not very pretty, even at the minimum volume. Having bought especially for intrauterine sounds lullabies are in my view an "option", intrauterine sounds are of good quality. Otherwise the pocket for the box is convenient, the scratch is designed to be soft and resistant small hands that want to take on everything they touch. Practical also to use the one box, it will avoid choking in the first months of the baby.