NEGATIVE IONS AND CONSTANT TEMPERATURE FUNCTIONS: Negative ion technology and constant temperature function ensure healthier hair care and drying experience. Negative ions can hydrate hair, lock in moisture and prevent heat damage, straighten hair, eliminate bifurcation, reduce protein damage, maintain hair's natural moisture and dry quickly.HIGH PERFORMANCE: 200V professional hair dryer with airflow collection technology increases the wind speed of the hair dryer and uses a U-shaped heating wire to distribute heat evenly. Due to the strong wind, you can dry your hair quickly, style it faster and easier, and create charming hairstyles.3 TYPES OF REMOVABLE AIR NOZZLES: Smooth nozzle, quick-dry hair, straight hair and comfortable shape; styling for dry hair and straight hair, easy to control direction, focused wind, comfortable shape; diffused can make the curls more obvious, make the hair smooth, the diffuser hair dryer enjoys the private styling experience.3 HOT AND COOL MODES: Variable speed temperature control, constant temperature protection and balanced heat for optimal control and versatility of your hair. Suitable for different hairstyles and drying times as well as heating and cooling for different hair types.OVERHEATING PROTECTION DEVICETo effectively prevent heat damage; AC motor, long life, low consumption, low failure rate; The hair dryer is small and convenient to carry,and the cable length is 2.5m, which can provide more freedom of movement.