Temperature: 266F-300F-355F-392 adjustable Power: 45W Voltage: 220V Frequency: 50HZ Specifications: PTC 30S FAST HEATING TECH The ceramic hair brush adopts PTC heating technology with the most effcient way , fast heating up within 30s, easily turns curly hair into straight hair in just few minutes,it saves your great time. 40 Min AUTO OFF Hair Straightener Brush will turn itself off after 40 minutes standing time, keeping you and anyone around you safe. 360 FLEXIBLE SWIVEL CORD 360 flexible swivel cord never gets tangled, freely create your desired hairstyle. The temperature is regulated by turning the switch at the bottom, so you don't have to feel hassled during use or turn it off if you accidentally touch the button IONS FOR HEALTHY SILKY HAIR With a built-in ionic generator, the hair straightener releases rich negative ions, giving your hair a smooth, silky, natural lustrous look. It helps reduce frizz, split ends and knotting, as well as adding shine and repairing damaged hair. Package Included: 1*hair straightener comb 1*instruction manual