REMAX Mini Portable USB Fan Rechargeable 2200mAh Electric Silent Fan Camera Shape Handled Fan 1. This USB rechargeable fan has a large, easy-to-use on/off button at the top,it's wind speed can be adjusted free. 2. This fan is with a rechargeable 2200 mAh 18650 battery,which can save the cost to buy a single one, it is also with a USB charging port for other power support methods ,such as usb wall charger,power bank,etc. 3.This fan is very slient when working,can provide you a very quiet and comfortable environment, do not effect your sleep quality. 4. Mini portable design,the package included one handstrap. It is very convenient to carry wherever you need it. 5. Camera creative style,cool and fashionable. The wind is soft and comfortable, can be used in a variety of situation, such as for office, outdoors, bedroom and baby room.