With the USB charging cable, works with and could be recharged by 5V output adapter, USB charger, laptop, computer, power bank and other USB-enabled devices. Three speeds wind with one button control, meet your different using needs. Especially suitable for summer travel or outdoor sports, also for home, office. Made of high quality ABS and PC material, this mini fan is durable for long time use. Practical user-friendly hook design, is the perfect size for travel, you can hang on the bag .