TRIXES USB Desktop Mini Fan, Portable & Quiet Cooling for Computer Laptop PC USB POWERED; No External power needed, simply plug into your USB port FOR ON THE GO USERS; Light weight portable allowing it to be moved to the ideal location that suits you best ADJUSTABLE ANGLE; Fan angle can be adjusted both upwards and downwards A GENTLE BREEZE; Power 5 volts & On/Off Switch making this fan easy to use