Ghd's Duet Blowdry Brush is a professional hair tool and 2-in-1 hair dryer brush that effortlessly transforms wet hair to blow-dried hair with no frizz and no heat damage. Included with the ghd Duet Blowdry Brush is a heat resistant bag to protect your surfaces and a cleaning brush..Creates long-lasting hair styles using Heat-Air Xchange Technology™, converting energy from airflow to actively heat the barrel plate and bristles to dry and add shape to hair with no heat damage.Snag-free heated bristles allow for smooth glide without tangling or hair breakage.Elliptical-shaped barrel plate helps to smooth and create shape while maintaining the optimum wet-to-dry styling temperature of 248° F.Automatic sleep mode after 30 minutes of inactivity Not universal voltage