Ⅰ. Blue option Ⅱ. 5 in 1 hair dryer Ⅲ. Frequency: 50/60Hz; Power: 1000W; Function: hot/cold air; Voltage: 100-240v Dual voltage; Switch: toggle button Ⅳ. Curly air usage: STEP 1: Open the switch with a hair strand. STEP 2: Hold the curling iron in a vertical position. STEP 3: Let the hair automatically suck into the curling iron. STEP 4: Stay for 10-30 seconds, time can be chosen according to preference. STEP 5: Release the curling iron. STEP 6: Curly hair success Ⅴ. Heat settings: Level 1: off; Level 2: about 61-63 ℃; Level 3: about 96-98 ℃; Level 4: about 136-140 ℃ Ⅵ. Product features: 5 in one hair dryer hot air comb modeling; Three different temperature gears; Easy to replace the brush head; Practical and portable; Gift for family and friend Ⅶ. Warning: Keep out of reach of children as they are potential sources of danger. Pay special attention to the external parts of the iron plates, they are very hot and can cause burns. Avoid touching the skin of the neck or face Ⅷ. Blue option