... 4). Support SD, MMC card; 5). Lithium battery, USB, adaptor. 1. Portable speaker;2. Metal case;3. Memory card slot: SD, ... MMC;4. USB 2.0;5. Audio support: MP3, WMA, ... MP4, Laptop, etc…;8. Unit size: 22.5*8.0*3.5(cm);9. Power supply: Lithium battery, USB or ... USB cable, manual, line-in cable, adaptor, gift box. Metal case portable speaker