1. Three-in-one interchangeable head design: Straighten, curl, and volumize in one machine. Equipped with interchangeable magnetic comb heads, it allows one-button switching between straightening, 28mm curling iron, and crimping functions, achieving smooth straight hair, wavy curls, and voluminous roots in one. No need to buy multiple tools, saving money and space. Even those with shaky hands can create French curls, Korean waves, or high-crowned hairstyles in 10 minutes. Transform your dorm or travel into a mobile salon. 2. Wireless and portable + suitable for dorms, USB charging eliminates power constraints. Built-in lithium battery with USB-C charging provides 30-60 minutes of continuous use on a full charge, safe for use even in dorms with limited power. Weighing only 185-220g and about the size of a mug, it easily fits into a makeup bag or gym bag. Become a hairstylist anytime, anywhere—commuting, traveling, or camping—and say goodbye to the "plug anxiety" of traditional curling irons. 3. Negative Ion Constant Temperature Hair Care, Intelligent and Safe, Won't Burn Your Hands. Utilizing a nano-ceramic coating and 200 million negative ions, it heats up quickly in 20 seconds with constant temperature control (120-210℃), effectively reducing static and frizz, and lowering moisture loss by 41%. Multiple safety features include 30-minute automatic power-off, an anti-scalding heat insulation layer, and a 360° rotating tail cord. Even beginners won't get burned by accidental contact. Suitable for fine/frizzy hair, hair care and styling are completed simultaneously.