1. Adjustable Temperature Settings: The hair straightening brush features 3 temperature settings to cater to various hair types and needs. The 160°C option is ideal for bleached, damaged, or fine hair, while the 180°C setting suits normal to lightly curly hair. For thick, curly, or coarse hair, the 200°C setting provides effective straightening results. 2. Ion Technology: Infused with negative ions, the hair straightening brush delivers a salon worthy hair care experience in the comfort of your own home. Say goodbye to frizz and static, and enjoy smoothly hair that looks and feels and revitalized. 3. 3D Comb Design: The innovative 3D comb design of the hair straightening brush offers superior hair gripping power and minimizes the burns or damage while styling, the comb's gentle yet efficient glide through your hair effortlessly. Spec: Item Type: Hair Straightening Brush Material: PET, Alloy Heating Method: Metallic Ceramic Heating Heating Temperature Range: 160-200? Charging Time: About 3 Hours Built in Battery Specification: Lithium Ion Battery, 3200mAh Usage Time: About 30 minutes continuous use at highest temperature How to Use: 1. Make sure to the device fully before use, do not turn on while charging. 2. To power on, long press the power button, short press the button to switch temperature settings. packing list: 1 x Hair Straightening Brush (Shipped with Built in Battery) 1 x Charging cable 1 x Comb 2 x Clip 1 x Storage bagCordless and Portable: Experience the cordless hair straightening with the cordless hair brush, designed for convenience and portability. Its compact and lightweight build allows for effortless styling anytime, anywhere, so you can achieve salon worthy results on the move or while traveling. Constant Heat : Equipped with rapid 20 second heating and consistent temperature control features, the hair straightening brush utilizes a built in temperature sensor chip to prevent fluctuations in heat that could potentially harm your hair. 3D Comb Design: The innovative 3D comb design of the hair straightening brush offers superior hair gripping power and minimizes the burns or damage while styling, the comb's gentle yet efficient glide through your hair effortlessly. Ion Technology: Infused with negative ions, the hair straightening brush delivers a salon worthy hair care experience in the comfort of your own home. Say goodbye to frizz and static, and enjoy smoothly hair that looks and feels and revitalized. Adjustable Temperature Settings: The hair straightening brush features 3 temperature settings to cater to various hair types and needs. The 160°C option is ideal for bleached, damaged, or fine hair, while the 180°C setting suits normal to lightly curly hair. For thick, curly, or coarse hair, the 200°C setting provides effective straightening results.