Cordless & Portable Design: Enjoy the freedom of a cordless hair straightener, perfect for use anytime, anywhere. Its compact size is ideal for on-the-go styling, ensuring you always look your best. 30s Fast Heating: Utilizing MCH technology, this hair straightening comb heats up to 392°F in just 30 seconds, offering quick and even heat distribution. Transform curly hair into sleek straightness in minutes. USB Rechargeable: Equipped with a 4,000mAh battery, enjoy up to 45 minutes of use on the highest setting. The display shows temperature rise and battery life, with easy temperature and power control. Negative Ion Technology: Emitting 50 million negative ions, it penetrates hair, repairing from the inside for a shiny, frizz-free finish. Adjustable for all hair types, including wigs and varying thicknesses. Safety Features: Designed with an anti-scald surface and an auto-off function after 15 minutes, this straightening brush prioritizes your safety, preventing skin burns and accidents during use.