Heat Conductor Diameter: 31mm or moreProduct Category: Hair Straightening & Curling CombPower Supply: Cordless (Li-ion Battery)Heat conductor material: ceramicTemperature control: 1 stageHair Type: UniversalStyling Time: 5Casing: BrushedRated power: 7.5WRated Voltage: 3.7VAdditional Features: Portable