This newly designed portable fan can be folded 270 degrees, the total length after folding is about 3.6 inches, only half the size of the palm, very convenient to carry, enjoy the cool wind anywhere at any time. Hold it in your hand or put it on the table, both are available. Built in 300mAh rechargeable lithium battery, mini fan, USB charger, laptop, computer, power bank, etc. Can be charged with It takes about 1.5 hours to fully charge. The indicator light turns on when charging and turns off when fully charged. This Usb Mini Folding Fan has 2 wind modes (low/high), running for 3 hours in low mode and 2 hours in high mode. Switch freely between strong wind and breeze with the power button. (Warning: Turn on the fan more than 150 degrees and long press the power button, the fan will start working. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.