1. Beard Straightener - This Electric Hot Comb / Beard Straightener can be used to style beard or hair on top of your head in 30 seconds 2.MCH Technology and Anti-Scald - This heated brush straightening comb is fast with unique MCH heating The technology maintains a constant heat level at all times, providing maximum straightening power with every pass. 3. IONIC TECHNOLOGY AND SAFE DESIGN - This Men's Beard Straightening Brush features negative ions to hydrate and smooth men's hair, preventing heat damage and ensuring a healthy, polished look. The bristles of the brush protect the face and scalp from burns. 4. TWO TEMPERATURE MODES - This heated beard comb has two temperature modes: green light (180/356) for thick or thick beards and red light (200/392) for long beards and curly hair.