Third generation Gel Laptop cooling pad, no power required! Light, soft, roll ... new design of the Gel Laptop Cooling pad.New features:* transparent window on pad, user can see material conversion* folding ... meanwhile, ice crystal (granules) will begin to melt.2. Easy to use, NO NEED OF POWER! just ... heat from laptop. Working (absorbing) time will last 2-5 hours, it depends on different kinds of ...