Features 1.Super quiet fans create a noise-free & interference-free environment for you. 2.Ergonomic stand with 6 adjustable height settings to play games or watch movies at the most comfortable angle. 3.6 Built-in fans (70 x 70mm) with blue LEDs. Strong durable but lightweight construction with metal mesh front. 4.Dual USB hub allows for connecting more USB devices. The stopper on the front to prevent laptop from falling off. Box on the bottom for storing the USB cable. 5.+/- buttons is used to adjust the fan speed and LCD display shows the wind speed rating. The light button is used to controll 6 fans(Press the switch to select Left 2 fans working Middle 2 fans working Right 2 fans working or all 6 working together.) Specification Features: Super quiet fans create a noise-free & interference-free environment for you. Ergonomic stand with 6 adjustable height settings to play games or watch movies at the most comfortable angle. 6 Built-in fans (70 x 70mm) with blue LEDs. Strong durable but lightweight construction with metal mesh front. Dual USB hub allows for connecting more USB devices. The stopper on the front to prevent laptop from falling off. Box on the bottom for storing the USB cable. The + / - buttons can be used to adjust the fan speed and the LCD display will show the wind speed rating. The light button can be used to controll 6 fans(Press the switch to select Left 2 fans working Middle 2 fans working Right 2 fans working or all 6 working together.) Specification:Material: ABSNoise: 21dBaFan Size: 70 x 70mm (6PCS)Wind Speed: 1200 10% RPMMaximum Air Volume: 74.35CFMRated Current: 0.22AInput Power: 1.75WSize: 38 x 30 x 3cm / 14.96 x 11.81 x 1.18inchPackage Weight: 1190gQuantity: 1pcFitments: For 17inch and below 17inch notebook computers including Apple MacBook MacBook Air and MacBook Pro Samsung Lenovo Thinkpad Dell HP Acer Asus etc.Package included:1 x Laptop Cooler Pad Base1 x USB Cable Package List