BRUSHLESS HIGH SPEED MOTOR: Utilizes up to 110,000 RPM to produce more wind power. Brushless motors are smaller, lighter and last longer. All its advantages.Negative ion generator built-in for frizz free. BUILT-IN ONLY IQ CHIP: The use of precision PCB plus IQ chip and power management system makes AINA high speed hair dryer more intelligent. During the working process, the temperature control system will monitor the temperature inside the machine in real time, and can intelligently adjust the temperature output of the heating body at any time to ensure the safety and life of the machine.