mini speaker,mp3 player,FM built-in Hi-Fi speaker built- ... card to 8GB Line In function mini sound box/mp3 player/FM radio Features:High-textured aluminum metal surface makes ... to 8GBLarge built-in storage space 2G-8G, support MP3 / WMA filesHeadphones can be used in order not ... USB 2.0 Full speed, FAT16 / FAT32 SystemAudio format: MP3 / WMAWork temperature:-18 ~ 80Color: red,blue,gold,blackDimension:88 ...