Color: Gray Charging interface: Micro-USB Voltage: 3.7V Rated power: 25W 150?-160?: suitable for soft hair 170?-180?: suitable for normal hair 190?-200?: suitable for rough and hard hair Battery: built-in 2600mAh-2 batteries 6 Timers: 8s, 10s, 12s, 14s, 16s, 18s Applicable hair: dry hair Temperature control adjustment: 6 steps Thermal conductor diameter: 16mm-20mm Size: (Approx) 20x7cm(LxW) Package Included: 1 PC x Cordless Auto Curler 1 PC x Comb 2 PCs x Clips 1 PC x Storage Bag Tips: Please fully charge the curling iron before use to achieve the best performance. Be sure to press the curl button to the end to avoid twisting the upper part of the hair tress when curling. Please not to release the curl button until the continuous beeping sound stops. This curling iron cannot be used while charging, it needs to be fully charged.LCD screen - The LCD Display can show you the temperature, direction, timer and battery level. If no one operates the machine for 10 minutes, it will shut down by itself to prevent malfunction and ensure your safety. USB Rechargeable : Built-in 5000mAh rechargeable battery, use a 5V 2A adapter (come with a USB cord without adapter) to charge for 3 hours, will last up to 60 minutes continuous.And hair curlers takes only 60s to preheat up, getting your curls in a snap. 6 Temperature 6 Timing Settings: Cordless auto curler have 6 temperature options with a wider range from 300? to 390?, suitable for different hair types. 6 Timing Settings(8-18s) allows you to select suitable time to create a variety of hair style from waves to tight curls, enjoy the endless styling possibilities. Clear temperature, direction, timer and battery level display, please set the temperature and curling direction you want on the display in advance. Ceramic Prevents Scalding Technology: The heater of auto hair curler is infused with Nano Silver, Ceramic coating Tourmaline. Those great elements make hairs lock in natural moisture and transforming frizzy,while emitting negative-ions to smooth your hair.Unique heat-insulating chamber protects your hands and skin from burning. Automatic Curling: The latest cordless curling iron in 2021,creates glamorous curls easily after pressing a button.With size of 7.5 x 2.37 inch,the protable hair styler automatic rotating barrel creates curls effortlessly in seconds.Say goodbye to the messy and tangled cable design.