Hermitech MP3 Station - USB jumpdrive/SD card MP3/AAC/WMA Player with Display and FM Transmitter (black) Supported Media Formats: MP3, AAC, WMA. Memory device options: USB Flash , SD card Features: 14 digital equalizer presets; repeat/shuffle play; Song/Artist/Album display FM frequencies: 87.7 - 88.9 MHz (US and European FM band). Quartz stable frequency with PLL transmitter Power: via car cigarette lighter or AC adaptor