Features: World's first patented NB air extracting fan Allows faster extraction of the hot air out of a running system, which stabilizes the operation of the NB and prolongs its lifetime Universal clip for fastening USB power interfaces, compatible for all major NB brands Weighted only 60g, compared with other bulky NB cooling pads, suitable for storage and to carry Simple style, shiny paint finish and LED light decorations, all enhancing the technological feel of the product 180-degree rotateable wind positions design allows to adjust freely Specifications: Total dimensions: 80 x 63 x 25mm Rated voltage: 5V DC (USB) Speed: 3,800 +/- 10%rpm (MAX) Noise level: < 26dBA (MAX) Bearing type: ever lubricate long life bearing Color: NB-FA1: Color: black, red LED NB-FA2: Color: white, blue LED Weight: 60g