SAFETY LOCK: The mini straightener flat iron is equipped with the safety lock button design, the hair straightener will be ON when it is used and OFF when charging or not in use, it can prevent your hands from touching the high-temperature plate after using. Please do not use it while charging. If you have any problems using this hair straightener, please feel free to contact us, we can resend you a new one or provide a full refund. ADJUSTABLE TEMPERATURE SETTING: Cordless flat iron has 3 temperature settings: 320?/ 356?/392?,please select the temperature you need. 320?:For bangs or short hair,360?:For fine or soft hair,392?:For hard or thick hair. FAST HEAT UP & 3D FLOATING PLATE: The high quality ceramic heating plates is upgraded with a length 7.17 inches and a width of 0.73 inches. It is heat up quickly and evenly.The cordless straightener designed with a 3D floating heating plate so you can protect the cuticle and do not damage your hair, leaving your hair smooth, shiny, and healthy-looking.This ceramic flat iron for short, soft and thin hair, straight hair & bangs, bobs, men's short hair, not recommended for thick & long hair.If the hair is hard and a lot, a small amount and multiple operations are required. RECHARGEABLE HAIR STRAIGHTENER: The flat iron hair straightener with 2600mAh rechargeable large capacity batteries, charges for 2 hours and will last at least 30 minutes using time. The mini straightener flat iron can be charged with USB port anywhere, compatible with power banks, cars, computers, and USB chargers. lasts 30 minutes. (set to 320?). It is not only a straightener, but also a power bank. When your phone are running low on power, it can be used as a power bank to recharge your devices. CORDLESS DESIGN & PORTABLE SIZE: The wireless hair straightener is designed with portability in mind. The size of mini flat iron hair straightener is 9.15 inch*1.44 inch.You could take it in your bag or car. Easy to take out for travel, parties, business trip, interior, available anywhere! Cordless flat iron is an excellent gift choice for giving to family, friends, and oneself.