Sales service: Our product has been thoroughly tested, if have any question and our 24-hours friendly customer service will assist you with any question. Adjustable Temperature & Smart AUTO-OFF: Temp range from 180? to 450? This straightener will shut off automatically after 60 minutes non-use, safe function.Take it Wherever You Want -- Featuring 110v-220v worldwide dual voltage, 450? high heat allows you setup charming hairstyles. Ceramic Plates & PTC Heat Technology: With Floating ceramic plates straight , PTC heat up in 30 seconds and distributes heat evenly, saving your time less heat damage caused.Ajust ideal temperature with a rotatable wheel. LED disaply:The temperature displays on digital LED screen, convenient to design your hair style in a optimum temp. Adjustable temperature hair straightener suitable for all hair types, to help protect your hair from heat damage but add shine. Small Flat iron: The 1/2 inch Tourmaline Ceramic hair straightener with 4D 360°Swivel makes it easy to straighten all hair types and lengths. The straightener features rounded plate edges to help straighten, curl, or add flips.