Rehoyo beard brush is on a mission for you to tame unruly hairs, keep your beard straight and smooth, and step up your handsome game significantly. Features Anti-Scald Design The heated beard brush straightener designed with high quality anti-scald coated tooth, and anti-scald tooth comb is higher than the heating tooth comb, which can prevents heat damage to hair. Auto Shut-off There is a safety system on the beard brush that it'll auto shut off if it is not used for continuously 20 mins. It is a safe beard comb and hair styling tool for men. 3 Temperature Settings Low Heat: 160 C / 320 F for medium length beards. Medium Heat: 180 C / 356 F for coarse or thick beards. High Heat: 200C / 392F for unruly or hard to style beards.