... USB driver 5. CE,FCC, RoHS certificate Nice design super slim usb speaker for MP3,MP4, MID, mobile phone, ... notebook, etc.Features: 1. Metal case design 2. Super-Bass Voice3.Micro SD card slot 4. USB HOST5. ... function9. Line-in(connect to MP3, MP4, PC, Laptop, etc)Specifications: 1. Power Supply:DC 5 Volt(built ... Cable + User’s Manual+ Line-in Cable+lanyard super slim mini speaker with promotion price