SAFETY: It is designed with precise temperature control to guarantee anti scald and warm contact massage. Built-in automatic constant temperature and fast heating technologies decrease harmness to hair. FLAXIBLE TEMPERATURE: Control 320-410¡§H (160-210??). Max 410¡§H(210??), giving you the option to choose what temperature works. Customized set 180??(356¡§H)for natural texture hair. FAST AND CONVENIENCE: Instant heating in less than one minute allows you to simply plug in and begin brushing. Set to desired temperature using the built in LED screen and begin brushing. MULTIPLE FUNCTIONS - 3 IN 1 COMB - Hair massager, hair straightener and a detangling comb. Use all these magical functions and create rich hair styles of unrivaled beauty effortlessly and easily in a few minutes. MONEY BACK GUARANTEE: 100% Satisfied or money back. Simply return it within 30 days for a full refund.