Fan BENGOO Portable Fan USB Mini Desktop Desk Table Electric Rechargeable Fan for Home Office Laptop Hiking Traveling Outdoor Activities (White) Multi-usageYou can use this in your office or at home with the power from computers. You can also bring this portable fan for travelling in summer to help you cool down when it is hot outside. Internal Light&Side Light: The built-in blue light and sidelight makes this little fan more adorable and suitable for kids or romantic scenes.These beautiful lights will be very helpful when you turn off lights at night or when you are traveling/camping/hiking at night. Mini Size for Portably Carrying: The fan with mini size like an phone can be easily put into your bag.Perfect for outdoor activities like traveling hiking camping swimming.You can also place it on the desk and it will not take too much of your space. Three Adjustable Speed Design: The BENGOO Rechargeable Fan speed can be adjusted from low to medium and high according to your need, it can provide you more choices in different temperture environment. Charging Cable&Rechargeable Battery: The charging cable is the same as Android Phone USB cable. You can use or charge the fan with your smartphone charger or plug into your computer USB interface.You can charge the fan with the USB cable or one 18650 battery(Battery Included) and it can work two four or eight hours when fully charged( Depend on working modes).Please make sure you take off the insulation flim befor using it or it may not work.