Features 1. Longer Working Time: 4000mah large capacity, support long working time with one full charge. Working time depends on different speeds. You can charge this mini battery operated fan with any USB device since it is compatible with all USB ports. 2. 5 Speed Setting: 5 speed adjustable, short press the button to turn on the fan, and press repeatedly to adjust the wind speed or turn off the fan. 3. Digital Display: Designed with digital display, you can see the remaining power easily, avoid sudden power off. The USB rechargeable fan is foldable, support 90 degrees adjustment. 4. Multifunction Fan: Handheld Fan /Neck Fan/ Desk Fan: The portable mini fan not only can be used as a handheld fan, but also can be used as hanging neck fan, with a detachable lanyard. In addition, it has a removable base, can be used as a small desk fan on desk table. 5. Low Noise and Portable: High quality pure copper motor reduces frictional noise and provides strong wind at a lower noise level. With a weight of only 190 grams, the handheld fan can be taken anywhere at any time. Specification Material: ABS, PC Color: Pink, White, Blue, Green Size: 47 x 19 x 9 cm, Base: 6 x 6 x 2 cm Weight: 190 g Voltage: 3.7 v Rated Power: 2.5 w Input Current: 5V/2A Battery Capacity: 5000mAH, 4000 mAH, 3000 mAH Working Time: about 5~12 hours Package Include: 1 x Mini Fan (with Incense Chip) 1 x Lanyard