Temperature range: 160℃ – 210℃ Damaged hair: 160℃ Normal hair: 180℃ Thick or thick hair/fine or soft hair: 210℃ Video tutorial: Preparation: Turn on the power cord, turn on the curler and select the desired temperature and curling direction. The LED light will flash while the charger is heating. When the shaper emits a long beep, it is ready for use. Hold the shaper vertically, take a 1 inch hair section and put it on the long slit. Touch and rotate, press and hold the Turn button until the hair is completely wrapped around the curling barrel, then release the button. *Please put the hair through the long hair groove, not through the short hair slot. Loosen when you hear two short beeps, slowly pull the hair out of the shaper. Tips: The work surface and the front of the shaper become very warm when switched on. Avoid direct contact with the skin, especially eyes, face, neck and ears. Please make sure your hair is dry and combed before wearing. Allow the shaper to cool down completely before storing. Slight burning smell may be issued during first uses. This is the smell caused by the high temperature of new products, which is a normal phenomenon. This smell will disappear with continued use. If the temperature is too high, there is a risk of burning hair.