Compact Fan Portable USB Charging Handheld Fan for Household Office Outdoor Item Type: Fan Material: ABS Weight: Approx. 385g / 13.6oz Product Size: Approx. 24x13x7cm / 9.4x5.1x2.8in Rotation Angle: About 70 degrees Charging Method: USB Data Cable Battery Capacity: 1800mAh Battery Type: Lithium Battery (built-in) Battery Model: 18650 Product Power: 4W Charging Time: About 3 hours Working Time: About 3-8 hours (depending on the size of the gear) Wind Gear Number: 3 gears Function Mode: When the power of the product is low to one bar, it prompts that it needs to be charged and the charging indicator light is blue. There are 4 bars to display the battery capacity. When all the lights in the four bars are in blue, it is fully charged, and the white light is displayed when working alone. Charge while working, the white light and blue light are on at the same time. Work switch: one press to turn on, two press to 1st gear wind power, three press to 2nd gear wind power, four press to 3rd gear wind power, five press to shut down; Shaking head switch: One press to turn on the shaking head function, and two pressing to turn off the shaking head function. Power Supply Mode: Two power supply modes: Built-in lithium battery for power supply; it can be used for charging with an external power supply; the fan can be plugged into the base for power supply, or it can be used as a separate power supply.