Simple Operation: 064 Turn on the curling iron by clicking the button. Choose the desired temperature by clicking the button Start your styling work after 30 - 60 seconds NOTE: Long press 3 seconds to switch, short setting temperature, the lights begin flashing, wait until flashing stop, the temperature can be reached, you can start using. Features & details 2 in 1 Curling Irons & Hair Straightener, can Straightening and curly hair 3D Concave & Convex plate heating surface, Straighten hair more smooth, Curl hair more dynamic 4 adjustable temperature settings for all types hair: 140℃(285℉),180℃(356℉),200℃(392℉),220℃(428℉) Dual voltage and 360° swivel salon grade cord, 2.5m power line. Compact size with light weight, suitable for business or travel Create any hairstyle in minutes, from loose beach waves to tight ringlet curls, meets different occasions like dating, party, club or meeting