BAKTH Laptop Cooling Pad - Powerful USB Cooler Mat Tray Uses For 14 - 17 Inch Computers, Notebooks & MacBooks, Ultra Portable, Light Weight and Whisper Quiet (4 Fans) + Customized Large Mouse Mat Four fans and two anti-skid arms: four ultra-quiet 110mm fans. Optimized heat dissipation effect for 14"-17" Laptops. Two Fan Speed Controllers: One Controller controls two fans, working with two fans or four fans as you like. Extra USB Port: Extra USB port design, built-in extra USB Port allows to connect another USB device, such as mouse. Two height setting arms: Adjustable height setting as images. Comfortable for natural point of view. Ultra-thin: slim and portable. Packge contents: 1 x BAKTH Cooling Pad; 1 x BAKTH Mouse mat (free gift).