Portable Media Player. Metal materials. SD/MMC card slot. 1. Metal Case2. SD/MMC card slot3. USB HOST4. Music File Format: MP3, WMA5. Line-in(connect to MP3, MP4, PC, Laptop, etc)6. 3W Speakers7. Power Supply: Lithium rechargeable battery+ USB to PC8. Accessories: USB Cable + User’s Manual+ Line-in Cable+Adaptor(Optional)