✔ The engine speed is 20,000 rpm, the air flow is 3.2m³ / min, the air volume is up to 11.5 m / s, and the noise is only 40 dB. With the innovative inner cylinder design of 2020 and 18 centrifugal dust-free fan blades, the author's innovative dust-free fan blades will not accumulate dust for life. Eliminate the hassle of cleaning. 【Three-stage wind speed and three magnetic nozzles】 You can freely choose three cold / hot / strong wind modes according to the situation. With the cold air switch, you can switch between hot and cold with a single tap. ✔ In addition, three special types of electromagnetic nozzles are provided, such as smooth nozzles, standard nozzles and diffuser nozzles, which can be used for various hairstyles such as long hair, straight hair 【Dust cap and overheat prevention function】 The hair dryer weighs about 400 g (excluding the power cord) and is lighter than a 500 ml plastic bottle. ✔ The length of the power cord is 2 m and the device is equipped with an overheating protection device, so if the body temperature is too high, the power will automatically turn off. Equipped with a flat dust-proof tail cover to prevent foreign matter from flowing out of the suction port and the dry air nozzle. 【57 ℃ constant temperature hair care and negative ion technology】 our hair dryer has a high concentration of negative ions and is rich in 20 million ions to protect the hair. Improves hair's water retention and grooming while retaining a lot of moisture. Prolonged use can improve the shine and softness of hair. The built-in intelligent temperature control function keeps the temperature constant when using the hair dryer, prevents damage due to overheating, and protects the shine of the hair. 【Complete PSE certification and one-year quality guarantee】 Our PSE certification is a complete PSE certification, which is not only suitable for power plugs, but also for the entire dryer, and has high safety, please rest assured. can.