MiroPure Double Negative Ion Straight Brush Iron ・Heater: MCH ・Voltage: 100-240V 50/60Hz ・Weight: Approximately 430g (15.2 oz) ・Size: 30 x 6.2 x 4.1cm Each brush has a heat conductive coating, allowing heat to be evenly distributed, enabling smooth combing. Furthermore, the hair glides easily during brushing, preventing damage from friction. Unlike straight irons that clamp hair with plates, this does not strongly crush the hair. 【Temperature Guide】 ・Very fine hair/weak hair: 80-130°C (176-284°F) ・First-time use/thin, soft hair: 140-160°C (300-350°F) ・Normal to wavy hair: 170-190°C (338-374°F) ・Thick, coarse hair/strongly wavy hair: 200-230°C (392-446°F) [As you can see, this product is used, but it works well. I used it for a few months, but I don't have the original box.] Thank you for viewing.