USB COOLING FAN There is a large size cooling fan of our aluminum laptop desk, and lots of holes on the desktop, which can prevent your laptop overheated. WIDE APPLICATION A portable and versatile folding computer desk that can be placed on a desk to be a standing desk, or on a bed or anywhere you want to use your laptop comfortably! You can also put books or tablets to free your hands. ADJUSTABLE HEIGHT & ANGLES 360 degree rotation legs, easy to adjust and tighten, just choose the most comfortable height and angle as you like. EASY TO CARRY & STORE Removable mouse pad, and the laptop desk can be folded to be flat, you can take it to anywhere you need it conveniently. Noise 30dba Air Volume 40cfm Fan Speed 800rpm Weight 3.5 Lbs Fan Diameter 7.5 Inch Weight Capacity 33 Lbs Height Adjustable Range 2-19 inch Desktop Size 19 x 10.3 Inch(L x W) Mouse Plate Size 7 x 6.3 Inch(L x W) Material Aluminum Alloy & ABS Hard Plastic NOTE It is recommended that the installation should not be too tight to adjust easily. After the structure is installed, firm the interface for more stability. Package Includes 1 x Folding Computer Desk, 1 x Mouse Plate, 2 x Anti-skid Buckles, 1 x Instruction