Compact and Portable Cooler: Easily store in your backpack and travel with you; Designed with CrossFlow Fan: Circular Fan for Wide Air Flow with Small Foot Print Vertical Cooling for User: Not just for Devices, User can also Keep Cool; Horizontal Cooling for Laptop / Tablet / Smartphone: Multi Position for placing Device of Different Size Speed Switch Control: On / Off and Adjustable Speed Dial for High, Medium and Low Speed; USB Bus Powered: Do not require additional AC adapter, Any USB port can Power this CrossFlow Fan USB Power Cable, Plug & Play and Hot-swappable: Provided USB Power Cable for Easy Connect and Disconnect Anytime