This baby play mat, square, 1m side is composed of a cover fleece, washable at 30 degrees and a mattress that contains the battery compartment and the carpet interactif.Le device works with three batteries LR 3, not fournies.Le battery compartment is completely secure, requiring the use of a small Phillips ouvert.Une for start-stop position in the battery housing can turn off or turn on when lit jeu.Une The carpet works in discovery mode or musical.Dans the former mode, images affected baby, trigger the sounds of animals correspondant.Dans the second case, they are melodies that fonctionnent.Le sound level is small réglable.Des buttons also use "piano" .The assembly is beautiful, with nice designs and colors. (only downside, the document is written in hyper lowercase!)