Hign-concerned Chemical : NoneVoltage : 100-240v (Dual voltage)Commodity Quality Certification : ceMax. temperature : 220 °CTemperature Controller : KnobPower : 25W-39WApplicable hair : DryMin. temperature : 120 °CBrand Name : fastyle : Mainland ChinaItem Type : IronSpecifications:Plug: EU plugInput Voltage: 110-240VPower Cord Length: 6.56ft (2m)Automatic Shutoff: 30 MinutesTemp Range: 250?F to 450?F (120℃ -230℃)Size: 9.56* 2.24* 1.6inch (24.5*5.7*4cm)Weight: 0.77lb (350g)Instructions:1, Plug in the power, the LCD shows "OFF", enter into the standby state (no heat).2, Press the power key for 2 seconds to turn it on, the LCD shows 355℉ and flashes for 3 times, it begins to heat. The LCD will show real-time temperature until it reaches the selected temperature.3, Press the "+", "-" ons to set the temperature according to your needs. Press the power key for 2 seconds to turn it off.4, If no operation for 4 seconds, the ons will be locked automatically. The LCD shows "LOC" when you press any on, and will display the select temperature after loosening the on.5, Double click the power on to unlock, then you can adjust the temperature or shutoff the brush.6, It has a memory function, if not plug off the power, it will memorize the temperature the last time you set. If pull off the plug, the temperature setting will be 355℉ by default when turning on.7, Press the "+", "-" ons at the same time, the temperature can switch between ℉ and ℃.8, If no operations in continual 30 minutes, it will shutoff automatically and enter into standby state.