"24V DC Cooling Fan" in the middle part of the body is a round of hardcore child, there is a row of buttons above, marked with "1,2,3" and said the hair of different grades and switch button. To me there are other colors of the knob, which is a timer, if the owner of sleep, "24V DC Cooling Fan" The wind was too cold for too long, the owner will be vulnerable to cold, in which case he should be going to bed rotation knob, set a good time, work to the specified time, I will automatically stop working. The lower half of the back of my trunk, there is a circle Zealand children. Master required, subject to adjustment my height. The bottom of the chassis is a circular children, this is the "24V DC Cooling Fan" of the foot, which is used to fix and support the foundation of my whole body. Hot summer, as long as the owner of a press button, I immediately cool breeze blowing, the main people away summer heat.