Unique Foldable Design, Mini Portable: This newly designed portable fan can be folded 270 degrees, the total length after weight is about 9.2cm, very convenient to carry. Can be held in hand or placed on a table USB Powered: Built-in 300mAh rechargeable lithium battery mini fan, which can be charged by USB charger, laptop, computer, power bank, etc. The indicator light will be on when charging, and the indicator light will be off when fully charged ADJUSTABLE SPEED: This handheld fan has 2 speed levels (low/high), working for 3 hours in low mode and 2 hours in high mode. Use the switch to freely switch between strong wind and light wind Safe and Quiet to Use: The fan blades are made of soft TPE material, durable and safe, and can be folded automatically when the fan is turned off. The superior motor makes it quiet enough for use in offices, workplaces, outdoors, and more.