Description: Battery capacity: 5000mah (2500mah*2) Battery voltage: 3.7V Electricity: 9.25wh Charging time: 3.5 hours Continuous use time: 40 minutes Material: plastic shell + PTC heating element Feature: 1. The temperature, direction and time of the large-size LED liquid crystal are clear at a glance, which is easier to read and more convenient. 2. One-click automatic winding, zero basic operation. 3. 30s quick heat to give you shiny bouncy curls. The curling iron comes with a safe, non-toxic insulation to protect you from burns. 4. The temperature, time and direction are adjustable. Temperature 150-200C (300-390F) optional. The styling time can be adjusted from 8 to 18s, and the curling direction can be adjusted to meet the needs of different hair types and easily form perfect curls. 5. Built-in 2500mAh*2 lithium-ion battery for ultra-convenient cordless use. At the same time, it can also be used as a power bank. 6. Easy to carry when traveling, curl your hair anytime and anywhere. Package includes: Automatic hair curler*1 Hairpin*2 Comb*1 Dispenser*1 Storage bag*1 USB charging cable*1 Manual*1 Small color box*1