"Mini Air Cooling Fan" shaking his head determines the fan blowing range. General fan shook his head up and down manually into pitch, left shaking his head, shaking his head 360 degrees, O word, shaking his head and shook his head character, which character shaking his head with dual connecting rods and double motor / three power-driven drive shook his head, are generally high-end "Mini Air Cooling Fan"give it away relatively decent, but the greater the chance of problems more functions! Most practical and ordinary fans shook his head. Shook his head and saw the way: according to demand choice. If you would prefer to use a wide crowd "Mini Air Cooling Fan" function around shaking his head; if you need to adjust the air temperature, promote air circulation should choose 360 or O words, shaking his head.