Description: This product is a cooling fan for host. The product has novel and handy appearence,and is convenient to carry and easy to use. The product is a necessary game enthusiasts for . Features: . 1. Cool down your P4 hardware and make sure its dustless 2. Simply necessary gadget enthusiasts for 3. Turbo speed for really heavy games and hardcore gamers 4. Five fans and three different cooling modes 5. Automatic mode cooler turns on when your P4 gets hot and turns down when it gets cool again Operation Instruction: Connect the power cord. Seitch to ON button, start the fan. At this point, press the Turbo button to make the Turbo bounce, and the fan will speed down and the wind will weakened. Switch to AUTO button, then it goes into automatic mode;the fan will start as temperature rise and will stop working as temperature fall automatically. When in working state, if five fans are not working together,please switch to OFF; press TURBO button to make TURBO button in pressed state,then switch to ON again. Specifications: Material: Plastic Color: Black Size: 224 76 40mm / 8.82 2.99 1.57in (Approx.) Big Fan Diameter: 62mm / 2.44in (Approx.) Small Fan Diameter: 39mm / 1.54in (Approx.) Applicable scope: Applicable for host Working voltage: for DC 5V Big fan: for DC 5V 0.15A Small fan: for DC 5V 0.12A Fan speed: Big fan 4300rpm, Small fan 6000rpm Compatible for console Quantity: 1 Set (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 X Cooling Fan 1 X Charging Cable