Distributes heat evenly. Straightens hair and reduces frizz. 5 heat settings up to 450 degrees. Digital screen controls temperature. Negative ions help hydrate hair. 30 day limited warranty. Achieve trendy straight styles with the Z-Comfort Premium 2-in-1 Magic Straightening Hair Brush. This straightening hair brush uses negative ions to straighten hair and minimize moisture loss. This straightening hair brush heats up to 450 degrees and features digital screen temperature controls. Color: White.