Portable Handheld Fan USB Rechargeable Enhanced Wind Small Fan for Travel Office StudyPink Item Type: Handheld Fan Material: ABS+PP+ Electronic Components Weight: Approx. 110g / 3.9oz Size: Approx. 11.5 x 6.1 x 3.1 cm / 4.5 x 2.4 x 1.2 in  USB Cable Length: Approx. 100cm / 39.4inPower Supply Mode: USB Input Battery Capacity: An AAA Rechargeable Lithium Battery with a Capacity of 500mah Working Voltage: DC5V/1A Working Current: 250MA Power: 2.5W Charging Time: About 1 hour Use Time: 160min at 1st gear, 70min at 2nd gear, 50min at 3rd gear Gear Position: 3 gears (1st gear for weak wind, 2nd gear for moderate wind, 3rd gear for strong wind) How e1. The Micro USB port can input 5V for power supply.①When an external 5V power supply is connected and the fan is turned on, the fan will be given priority to supply power, and the remaining power will charge the battery.2. The two-color indicator red light is always on when charging, and the two-color indicator blue light is always on when it is fully charged. ②When an external 5V power supply is connected and the fan is not turned on, charge the battery with a maximum current of 1A. 3.Press the button to adjust the fan position, short press once to increase one gear, when it reaches the third gear, short press the button to turn off the fan. 4. The sling goes through the small hole at the bottom of the fan and can be hung on the neck. 5.If you don't use it often, please charge it every two months after storage to avoid battery damage.