Features:100% Brand new and high quality Portable Laptop/PC USB Cooler Cooling Fan.Ultra-quite design.Pitch angle can be adjusted upwards or downwards.With key switch.USB Powered, no external power required.Plug and play, easy install.Durable soft fan blades make you free of injury.Super mute.USB transformer can be purchased on its own power supply, the proposed purchase of 5V, 1000MA transformer above.Air volume comfort, close to use, all seasons.Notebook and PC cooling fan may be taking.Specifications:USB Power PlugBody size 154 x 100x 150mmFan diameter: 128mmWeight: 204gPower Supply: DC5VPower Consumption: 2.5  0.25WWire Length: 1.2mColor: black