Come and see our amazing products. 5 Inches and 3 colors for your choice.Compatible with computers, laptops, portable chargers and other devices with usb output. Powered Only by a USB cable. For better performance, 2A USB port is highly recommend.360 degree rotation fan, Not only is it quiet,but also it has easily plugs into a USB.It also provides cooling air circulation in any desired directions with 360 degree tilt rotation. Pls confirm with us about the packing info, stock color and exact production time before placing your order.