Features: 1.Super quiet fans create a noise?free & interference?free environment for you. 2.Ergonomic stand allows you to play games or watch movies at a comfortable angle. 3.The 2 stoppers on the front to prevent laptop from falling off. Box on the bottom for storing the USB cable. 4.One built?in big fan (Diameter130 x 20mm) with blue LEDs. Strong, durable but lightweight construction with metal mesh front. 5.The special USB hub design allows for connecting other USB device. (Only for the black color) specification: Super quiet fans create a noise-free & interference-free environment for you. Ergonomic stand allows you to play games or watch movies at a comfortable angle. The 2 stoppers on the front to prevent laptop from falling off. Box on the bottom for storing the USB cable. One built-in big fan (Diameter130 x 20mm) with blue LEDs. Strong, durable but lightweight construction with metal mesh front. The special USB hub design allows for connecting other USB device. (Only for the black color) : Color: Black, Blue (Optional) Material: Iron mesh + engineering plastics Cooling Method: Air-cooled Fan Size: Diameter130 x 20mm Bearing Type: Hydraulic Bear (Hydraulic Bearng) Rated Voltage: 5V DC Rated Current: 0.25 + 10% A Input Power: 1.3 Fan Maximum Speed: 750-1500RPM Maximum Air Volume: 23-44CFM Noise: 25.1db (A) Size: 33 x 25 x 3cm / 12.99 x 9.84 x 1.18inch Package Weight: 440g Quantity: 1pc Fitments: For 14" or below Laptop Package included: 1 x Laptop Cooler Pad Base