Third generation Gel Laptop cooling pad, no power required! Light, soft, roll ... patent product, patent number: 201020250301.7Brand new design of the Gel Laptop Cooling pad.New features:* transparent window on pad, user ... crystal changes to liquid can absorb heat from laptop. Working (absorbing) time will last 2-5 hours, it depends on ... will influence activity and quality of the sperm. Cooling gel pad