2. Max thrust 230g : Stepless speed regulation,Can choice freely to meet your requirements, the thrust can up to 230g. 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. 3. Multiple protections: machine over discharge protection, machine short circuit protection, battery reverse connection protection. You can use it at ease. 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.