Big wind out of the miracle of , compact and portable body, doubling the , stepless frequency conversion of wind speed exquisite and delicate process. The new infinitely variable speed and the wind it creates as raging to you Powerful wind 15.6 meters per second, the use of aero brushless motor, the maximum output speed of 28000RPM can produce the fastest 15.6 meters per second wind speed Five feather fan blade , compared to the traditional 3 fan blade, 5 fan blade wind power to improve 30% dense and strong, full of wind Knob infinitely variable speed size at your own pace, the new upgrade to stepless wind, knob adjustment, frequency conversion is and fast between the minimum 2 meters per second and the maximum 15.6 meters per second, you can switch. Built-in battery life up to 28 hours, high-capacity carp ion polymer battery configuration lasting life, and go Product name :High wind handheld fan Product Model: H36 Product size: 193x90mm Input: 5V 2A Button gear: knob adjustment, infinitely adjustable speed Rated power: 1.2W - 36W Fan: 5 leaves USB charging cable: 1m Noise: 30 - 72 centimeters Rotational speed: 3000RPM - 28000RPM Wind speed: 2m/s - 15.6m/s Charging: DC 5V/2A 4 hours Endurance: 4 - 7 - 12 hours Built-in battery: 12.6V 2600 mA power battery Colour:blue Material: ABS Package Contents: 1 x High Wind Handheld Fan 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.