With an integrated digital display and temperature range of 160°C - 230°C, you're in complete control with the S8590 Keratin Therapy Pro straighteners. Advanced ceramic-coated plates and an exclusive heat protection sensor allow complete ease of use, to glide effortlessly through the hair, giving an irresistible glossy high-shine finish. Heat-up time is an ultra fast 15 seconds, and there's a plate lock for storage and automatic shut-off after 60 minutes for extra peace of mind.