Bio Ionic 10X Pro Straightening & Styling Iron offers natural volcanic minerals which emit negative ions that drive water molecules deep into the hair. Hair becomes hydrated and conditioned, giving it a vibrant shine. The 1" vibrating plates smooth and style in under 10 minutes. Vibrating plates smooth & style in under 10 minutes. Natural volcanic mineral infuses micro hydration. Ultimate shine and condition. Dual voltage (120V-220V)