This dual-purpose device curls and straightens hair to create various hairstyles such as inward curls, bangs and straight hair. It offers three precise temperature controls that suit different hair types including fine and soft hair. It adopts a tourmaline ceramic heat conductor with a plant protein coating to repair hair cuticles, smooth frizz and eliminate static electricity. The wireless mini design with a built-in high-capacity lithium battery and a Type-C charging port supports 30 minutes of use after a full charge. It has a rated voltage of 3.7V, a rated power of 25W and a heat conductor diameter of 31mm or larger | Leaper Women's Wireless Mini Rechargeable Portable Hair Straightener in Black