Clip-on USB fan, compact and convenient for carrying. - Brand: FreeFly - Color: Black - USB connection: Compatible - Design: Clip-on Rechargeable. The airflow has 3 levels, and on the lowest setting, it can run for about 2 days on a full charge. Of course, you can also use it while plugged in. This is a used item, having been used for about 4 months, so please refrain from purchasing if you are sensitive to such things. Thank you for looking.