1. High quality components: This mini fan adopts super high-quality high-speed bearings, a new CNC metal turbine, a brushless motor, and a hand wound motor. 2. Super strong wind speed: capable of generating pressure and speed exceeding 52+meters per second. Actively dissipate heat through air vents, effectively expelling hot air from the cabin, providing protection for long-lasting operation. 3. 4000mAh capacity battery & 80000rpm: Even during high-speed operation at 80000RPM, the large battery capacity allows you to use it with peace of mind, without worrying about running out of power quickly. 4. Usage: Air cushion blowing and suction, computer equipment cleaning, industrial dust blowing, charcoal burning to support combustion, car blowing and snow blowing, film studio and wind making, drying pets, and many other uses. 5. Four wind speeds: long to switch on, switch 4 different gears of wind speed, simple operation. Working Voltage: 7.4V Over Temperature Protection: 150℃ Motor type: