Product Details Name: Wireless splint hair straightener  Material: PC, PA66Charging cable: micro USB charging cable (1 meter) Charging time: 3 hours - 4 hours Battery: International 18650 lithium-ion battery Battery capacity: 3.7V-2500 mAhTemperature: 165 ° C, 185 ° C, 205 ° C (display is the measured temperature) Usable time: due to temperature and environment, the standby time varies from 45-60 minutes when fully charged Heating element: 6.3 cm long and 1.7 cm long Shutdown protection: automatically shut down 40 minutes after booting Power-on protection: With power-on protection function, if the temperature is not adjusted after the switch is turned on, the product will automatically shut down within 15 seconds.Temperature memory function: with memory functionHeating rate: 2-3 minutes, fast, about 2 minutes to reach 205 ° C