【Fast Heating】Professional tourmaline ceramic barrel, quickly heating up and gives you a smooth, massive shine and bouncy curls without all the damage. 【LCD Display】Large LED display presents clear temperature, direction, and timer, it presents more readable and convenient use. 【Efficient & Safe】Our hair curlers can be heated quickly and its cordless design can maximize your modeling efficiency. It is equipped with a safe and non-toxic insulating material inside the curling room which can protect your from burns when you use it. 【Temperature/Timer/Direction Adjustable】150-200℃ temperature selections, 8-18s auto curling timers, as well as curling direction (left and right) together allow to form a perfect loose or tight curls easily, saving a lot of time. 【USB Rechargeable】Built-in 5000mAh lithium-ion battery enables super convenient cordless use. 【Easy Use & Portable】The barrel will auto spin around and wrap section of hair into curling chamber. Easy to carry when traveling, can curl your hair anytime and anywhere, far away from the trouble with the line. Battery capacity: 2500mAh Battery voltage: 3.7V​ Battery watt hour: 9.25Wh Battery type: Lithium-ion rechargeable battery Charging time: 3.5hours Using time: continuous using time of about 25 minutes Temperature gear: 6(150℃ 160℃ 170℃ 180℃ 190℃ 200℃ USB length: 58±5cm Item size: 19x5.6x4.9cm Choose your heat, curl direction(left, right or mixed), and time setting Strat with 1/2 inch to 1 inch section of hair Insert hair into the curl chamber, press and hold the button to begin auto curling Wait for the beep and then release the perfect curl