With no cable limits, the Cordless Reel with Built-in Battery can easily slip into a perfectly sized bag or backpack (only 7.6 inches long), comfortably in your hand and let your hair curl longer quickly. It recharges in just 3 hours and you can enjoy 60 minutes at 180C. Long life - the device instantly converts curves into curls and provides 3D heating so your hairstyle is instantly set, so curls last longer. Easy to use: Hair is automatically and gently curled in tourmaline ceramic, held in all directions, timed and heated to create perfect curls. Safety: It has a safety feature that automatically locks so you can remove your hair while wrapping it. Double thermal insulation - the secret to cool facial contact.