Features: Rechargeable Design: The hair straightener brush features a built-in lithium-ion battery that provides extended cordless usage, ideal for travel and on-the-go styling without the need for constant power access. Dual Functionality: Combines the convenience of a straightening brush with curling capability, allowing users to smoothly straighten or create soft waves with one versatile tool for multiple styling options. Negative Ion Technology: Emits negative ions during use to reduce frizz and static, sealing the hair cuticle for smoother, shinier results while minimizing heat damage for healthier-looking hair over time. Portable Build: Compact and lightweight design makes it easy to carry in a bag or suitcase, perfect for dorm rooms, trips, or daily commutes where space and convenience are essential. Quick Heat Up: Heats up rapidly to the optimal styling temperature within minutes, reducing waiting time and enabling efficient styling sessions even during rushed mornings or last-minute touch-ups. Specifications: Material: ABS Plastic + PTC Heating Element Battery Capacity: 4000mAh Charging Time: Approx. 2 Hours Usage Time: Approx. 70 Minutes Include: 1 * Negative Ion Hair Straightener Curling Brush 1 * USB Type-C Charging Cable 1 * User Manual