The built in rechargeable battery provides 4-13 hours of cooling (depending on speed), supported by USB C fast charging that fully power the device in just 1.5 hours This portable fan features a semiconductor cooling plate that rapidly lowers temperature to 60°F, providing quick relief for face, neck, or back during heat Ideal for makeup setting and eyelash extension care without smudging Equipped with a high speed motor strong airflows for cruises, festivals, or workouts Its quiet operations makes it perfect for offices desks or reading without disturbance customizable wind speeds, with a digital screen showing real time battery levels and settings for outdoor adventures Weighing only 7.6oz, this versatile fan transforms between handheld, neck hanging, and desktop modes for commuting, dog walking, or offices use, making it an essential travel companion