Portable USB Charging
Convenient USB charging method can be connected via the included USB cable to laptop, PC, 5V output adapter, power bank, car charger, etc. high compatibility and the fan has a functional indicator. According to the battery usage, the corresponding indicator will light up, and it also could remind low battery.This battery-powered fan with removable 2500mAh*2 lithium battery(included) 5 to 14 hours of use when it fully charged, and can be carried around without cable, ideal for home, car, office, desk, and outdoor activities such as camping or traveling.