Extra wide straightening plates have been designed specifically for thick or long hair. The increased plate width can straighten more hair in one go and will help to reduce the time required to style SlikProtect technology for optimized temperature and minimized damage Quick and smooth styling with ultimate shine provided by Keratin plates infused with titanium allowing for fast heat transfer and smooth gliding through the hair Philips Straightener is equipped with a special ION functionality to provide you frizz-free smooth hair. When this function is on, it is normal to hear a sizzling sound coming from your straightener. You may also get a strange smell