Negative Ion Technology: The hot air brush has an integrated ion generator that releases negative ions. These ions effectively neutralize static electricity, reduce frizz and give hair extra shine. They reduce the static charge on your hair and add volume. 3 Modes: The hot air brush provides you with three modes: blow dry, quick dry and style. Choose the setting that best suits your hair type from three heat levels and two fan levels. For thick or unruly hair, choose "high" hair. For fine or thinning hair, set the "Low" setting. manner. TWO BRUSH HEADS: This brush has two interchangeable brush heads that rotate 360 and are suitable for straight or curly hair. By changing the brush head, you can create different hairstyles, such as light curls or slightly curved ends. All-in-one: This hot air brush combines the power of a powerful hair dryer and hair straightener. With the 3-in-1 multi-purpose hairbrush, you can quickly blow dry, add volume, straighten or style your hair - all in half the time of professional styling.