What it is: A curling iron engineered with T3 Rapid HeatIQ technology to ensure advanced heat precision for even, consistent heat during styling.What it does: This curling iron delivers first-of-its-kind styling personalization with a smart touch interface, with nine precise heat settings that automatically adjust to your specific hair needs without overexposing your hair to unnecessary heat. It enables you to input your unique hair profile based on texture, color and chemical treatments for optimized heat and smooth, shiny curls that last.Features and benefits:- T3 Rapid HeatIQ delivers advanced heat precision for fast, long-lasting results.- Smart microchip actively monitors heat fluctuations to ensure temperature consistency during styling.- Nine precise heat settings deliver personalized heat for every hair type and condition.- Dual ceramic heaters provide even heat free of hot spots.- CeraGloss ceramic barrel smoothes the hair cuticle to deliver long-lasting results in one pass.- Ion generator infuses millions of frizz-smoothing negative ions to lock in shine.- Lightweight body and sleek design allows for an effortless styling experience.- Eight-foot, 360º professional swivel cord.- Auto world voltage.- One-hour auto-off.- Cool tip and stand. How to use: Hold the power icon down to turn the curling iron on or off. To set your HeatID, tap and toggle through each icon and input your profile. Double tap the power button to lock in your profile. The tool will then begin to heat up and be ready to use once it beeps and the lights stop blinking. You can also manually input your settings if desired. 5 1/2" x 3 1/4" x 15 3/4"