This is a notebook cooler, made of aluminum alloy and plastic materials, it is durable and lightweight. large fan and many holes, your computer will cool quickly in the summer, so your computer will have the long use life pan. suitable for home or office. Features - Color: Silver - Material: Aluminum alloy and plastic - Size: About 35x26x2.6cm. nominal voltage: 5VDC power: 2. fan rotate speed: 700-1400RPM±15% - Made of aluminum alloy and plastic materials, it is durable and safe. - The product supports the laptops " - Thin design is practical, you will carry it easily. - Skid resistance baffle keeps your laptops stable - You can adjust the wind with the rotary knob - Six brackets adjustment, human engineering, it is at just the right angle, you will get the comfortable angle, - Dual USB interface, excellent details bring ups excellent experience. - is practical, your families will have the good sleeping time. Package list: 1 x Cooler