3. 10000mAh capacity battery&16000rpm: Even during high-speed operation at 16000rpm, the large battery capacity allows you to use it with peace of mind, without worrying about running out of power quickly. 2. Four gear speed regulation: Can choice freely to meet your requirements.Or long press to reach violent mode. 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. 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., Weight: 1.02735414092 Pounds, Manufacturer: NONDK