Strong wind usb fan new handheld fan that also functions as a desktop fan. the mini pocket size can be easily put into backpacks or purses as well as pockets. an ideal for kids, the elderly, and women, offering convenient cooling anytime anywhere for hot summer days. multiple charging methods - usb fan comes with a charging cable that compatible with any usb port it can be charged via usb charger/ computer/power bank / car charger and other usb-enabled devices. this handheld fan built with 800mah rechargeable lithium battery which is ce approved & rohs compliant. safe and environment-friendly. charged with micro-usb power port hours of operating time on the highest fan settingit can be desktop fan or handheld fan to satisfy your different needs with cool design, you can put the fan upright or diagonally on the table, also great for office. you can carry it with you easily when you go out for a picnic, shopping, traveling, camping, etc. it can easily fit in your backpack or beach bag.