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<span style="font-size:12pt"><span style="font-family:宋体">&plusmn;</span></span>15% - Made of aluminum alloy and plastic materials, it is durable and safe. - <span style="background-color:#ffffff; color:#2e3033; font-family:Arial,'Microsoft YaHei',微软雅黑,宋体,'Malgun Gothic',Meiryo,sans-serif; font-size:14px">The product supports the laptops &quot;</span> - Thin design is practical, you will carry it easily. - Skid resistance keeps your <span style="background-color:#ffffff; color:#2e3033; font-family:Arial,'Microsoft YaHei',微软雅黑,宋体,'Malgun Gothic',Meiryo,sans-serif; font-size:14px">laptops stable</span> - <span style="background-color:#ffffff; color:#2e3033; font-family:Arial,'Microsoft YaHei',微软雅黑,宋体,'Malgun Gothic',Meiryo,sans-serif; font-size:14px">You can adjust the </span>wind with the rotary knob - <span style="background-color:#ffffff; color:#2e3033; font-family:Arial,'Microsoft YaHei',微软雅黑,宋体,'Malgun Gothic',Meiryo,sans-serif; font-size:14px">Six brackets adjustment, </span> <span style="background-color:#ffffff; color:#2e3033; font-family:Arial,'Microsoft YaHei',微软雅黑,宋体,'Malgun Gothic',Meiryo,sans-serif; font-size:14px">human engineering</span>, it is <span style="background-color:#ffffff; color:#2e3033; font-family:Arial,'Microsoft YaHei',微软雅黑,宋体,'Malgun Gothic',Meiryo,sans-serif; font-size:14px">at just the right angle</span>, you will get the comfortable angle, - <span style="background-color:#ffffff; color:#2e3033; font-family:Arial,'Microsoft YaHei',微软雅黑,宋体,'Malgun Gothic',Meiryo,sans-serif; font-size:14px">Dual USB interface, excellent details </span> <span style="background-color:#ffffff; color:#2e3033; font-family:Arial,'Microsoft YaHei',微软雅黑,宋体,'Malgun Gothic',Meiryo,sans-serif; font-size:14px">bring up</span>s <span style="background-color:#ffffff; color:#2e3033; font-family:Arial,'Microsoft YaHei',微软雅黑,宋体,'Malgun Gothic',Meiryo,sans-serif; font-size:14px"> excellent experience.</span> - is practical, your families will have the good sleeping time. Package list: 1 x Cooler