Elsse (TM) On Ear Sport MP3 with Micro SD Card Slot (memory is NOT included) - Supports 1GB,2GB,4GB,8GB SDHC MEMORY (Memory Card not included) MP3 Player with Micro SD Card Slot Supports 1GB,2GB,4GB,8GB SDHC MEMORY NO built in memory - Micro SD card should be purchased separately DOES NOT work with iTune.