"Small Cooling Fan" with a new generation of extremely variable frequency power. Compare the market at the same level of 15% efficient DC fan frequency. The lowest were selected at run time and the most high-end power test. To test the power of this stand fan of circumstances. The actual test can find this "Small Cooling Fan" of the actual power consumption is very low more power, but this stand fan in 12 hours unattended machine will automatically shut down any key to enter standby mode, eliminating forgot to turn off the fan brought wasted. In the test noise and power consumption are in accordance with the most low and most exclusive way couplet create colorful "Small Cooling Fan", which saw a strong damping effect mute noise tests.