Dyson Corrale Straightener is the only straightener with flexing plates* that shape around your hair, gathering it together on each pass. This control means no hair can escape, resulting in all of the hair being straightened - you can achieve the same style but with less heat - and therefore half the damage**. It also means enhanced styling, for reduced frizz and fewer flyaways***. Plates are made from manganese copper alloy. It can be used corded, or cord-free to provide extra versatility and freedom while styling. Using a 4-cell lithium-ion battery, it delivers up to 30 minutes of cord-free styling**** with the thermal performance of a corded straightener. If you need to style for longer, attach the magnetic 360° cable and style in hybrid charge mode.