There is no rope restraint, and the use is no longer limited by the power socket. After fully charged, the hot air can be used continuously for 20 minutes, the cold air can be used continuously for 5-6 hours, and the usb charging needs to be charged for 5 hours. , suitable for student dormitory, family, outdoor, pregnant women, pets Product name: Student dormitory hair dryer Temperature gear: cold air mode, hot air mode Battery capacity: 3200mAh 6 Dimensions: 145x70x260mm Maximum power: 300W Category: USB charging Weight: 850 grams box: 1 Student Dormitory Hair DryerThermostatic heat: 57 C thermostat protects hair from heat damage, heat spreads steadily and evenly, and dries quickly while smoothing cuticles and locking in moisture for softer, healthier hair. PERFECT GIFT: This portable cordless hair dryer is an ideal gift for your wife or daughter. Ideal gift for mother, girlfriend or daughter. Perfect for Birthday, New Year, Christmas, Valentine's Day, Mother's Day and many other holidays. Student hair dryer: high-power hair dryer radiation is relatively large, not suitable for use. It is safe and fast drying. With noise reduction technology, the noise is reduced by about 10 compared with similar products, providing you with the best experience. Cordless Hair Dryer: This battery powered hair dryer has no cords and is cordless designed to allow you to read emails or walk freely while drying your hair, lightweight and portable. Large-capacity battery: built-in 6 3200mAh large-capacity batteries, only need to charge the USB data cable for 5 hours, it can be used continuously for 20 minutes with hot air or 6 hours with cold air.