Portable Hair Straightener Brush: This Hair Straightening/Curler Comb is Compact Lightweight with 6.6ft 360-degree rotating power cord which can styling by one hand. Take it to travel around world with Dual Voltage 110-240V. 3 Level Temperature Adjustable: The heat of the straight hair comb is evenly distributed, and when the temperature rises, there are 3 temperature settings to adjust, making it suitable for all types of hair combing. Easy to Use: Press and hold the on/off button of the Hair Straightening Brush for 1 second to "turn on", the red and blue lights are on, the default low blue light. Flashes after 3S, the machine starts to heat up, and automatically shuts down after 30 minutes. Fast Heating: This Straightening Brush quickly heats up within 30 seconds, greatly saving the time of combing and straightening the hair, while the protective layer will not burn the hair and skin, making it safer to use. Upgraded Heated Straightening Brush: This ionizer straightening brush releases ions that lock in moisture from the cuticles of the hair surface for smoother, shinier hair, thereby reducing dryness and split ends. Let you get healthier hair.