Product description A laptop cooler, cooler pad or chill notebook mat is an accessory for laptop computers that helps reduce their operating temperature, which is normally used when the laptop is unable to sufficiently cool itself. 3 Cooling Modes: The laptop cooler has 6 speeds, 3 modes. Press the O/M button, the default fan speed is 3, all fans are working, all lights are bright, first cooling mode. By pressing and holding O/M 2-3 seconds, 2 small fans are turned off, 2 big fans are still on, second mode. Pressing and holding 2-3 seconds again, 2 large fans are off and 2 small fans are on, third modes. Pressing again, turn to first mode and cycling. Fan speed can be adjustable in each modes. Cool Blue LED Lights: The LED indicator light locating four fans allows you to easily know the working status of your cooling pad, especially at night. They surely look cool, especially when you are using your computer in low light. Different Fans Combination: The laptop cooling pad with all sturdy and durable iron network structure is a better choice for protecting your PC. Large fan is 125mm*125mm*15mm, small one is 70mm*70mm*15mm, both of them are made up by 11 flabellum to provides a stable and cooling surface for your notebook computer. Ergonomic Design: The ergonomic design laptop cooler with 5 adjustable height settings which can truly suit your needs, ensuring a better visual or typing angle to relieve neck & shoulder aching when you play games, watch movies or do work for all-day viewing. Wide Compatibility: The pc cooling pad is durable to load 10"-15.6" laptop notebook. Package Contains: - One(1) Laptop Cooling Pad - One(1) Durable Type A to Type A cable Are batteries needed to power the product or is this product a battery : No Is this a Dangerous Good or a Hazardous Material, Substance or Waste that is regulated for transportation, storage, and/or disposal? : No