Product Size (L x W x H): 36.0 x 27.0 x 2.1 cm / 14.2 x 10.6 x 0.8 inches.Quiet wind capacity dual-core design， combined with colorful ice light， filling the ice Hyun charm heat instantaneous.High versatility compatible with various brand size books Specification:Type: Cooling FanConnection: USBRated Voltage: 5V DCRated Current: 0.35AColor: PurplePackage Contents: 1 x Cooling Fan