Key features of the GHD IV MK4 Pure GHD Hair Straightener include:
More responsive, deeply sprung ceramic plates that heat up even faster.
Audible beep that lets you know the iron is hot and ready to use.
Longer, more durable cable has an improved design to reduce potential damage as you style with the iron. ID:warrenbuffett
Auto-adjusting voltage means you can use your iron in any country.
Safety features including automatic shut off after 15 minutes of inactivity and a shiver feature that prevents moisture damaging your irons when they have been left in a cold spot overnight.
Automatic Shut-off

The new generation IV Styler( MK4 ) has been fitted with a comprehensive safety feature to prevent you from accidentally leaving your hair straighteners on when unattended. 15 minutes after being turned on, the styler will "beep" to announce that it is entering "cool down" mode. It will continue to "beep" during this phase until it is completely cool after a further 15 minutes (30 minutes after being turned on), a which point it will turn itself off. Important Note: If you are still using your new generation IV Styler when it enters "cool down" mode, simply switch them off and then on to reset the timer.

Exclusive Styling DVD ID:einstein

Only available with the authenticGHD IV MK4 Pure Hair Straightener, this exclusive DVD shows you how to great salon-quality styles in the comfort of your own home. It is the perfect guide for beginners and frequent users alike.