Hair type All Colour Gold Power source Corded Electric, Battery Powered Heater surface material Tourmaline Product dimensions 15L x 5W centimetres No cable restriction cordless curl with built-in battery pack can be easily carried in the pocket or backpack of the perfect size (just 20cm long/7cm width) that fits comfortably in the hand to lure the hair faster. Charge it in just 3 hours and enjoy 60 minutes at 180C. Easy to useYour hair is automatically and gently drawn into the tourmaline curd chamber where it is held, timed and heated from all directions to effortlessly sculpt the perfect curl. Cordless designBuilt-in 5000mAh rechargeable battery for 60minutes working time and tangle-free & rotating cord design, this hair curler will give you the mobility you need to stay in the same place when you roll. The patented automatic technology will allow you to wrap around your hair and create curls automatically within 8 seconds at home, or wherever you go. Long Lasting With this device that instantly turns curves into curls and offers a 360 3D all-round heating, your hairstyle is instantly fixed to keep your curly hair longer.