-Portable mini fridge, apply to all PC or other USB interface, no batteries or driver required, plug and play
-Cooler & Warmer -- to keep your cold drink stay cool longer, and make warm beverage keep warm longer at hand
-Switch and LED indicator--"I" is for cooler with green light; Switch "II" is for warmer and the red light is on
-USB Fridge can holds two 12 ounce cans