Mattel Barbie Girls 1GB MP3 playerBarbie Girls device is a fashion doll and MP3 player in one1GB memory to store 240 songsExpandable miniSD slot up to 2GBConnect Barbie Girls device to a computer to unlock new features on BarbieGirls.comSecond fashionAdjustable-sized earbudsBelt clipDocking stationRegistration CDReusable storage caseWindows XP and Vista compatibleNot MacOS compatibleGreenMATM5103