Quiet: powerful power, low running noise. This provides you Breeze without disturbing you. 3 Speed adjustment: Three fan speeds are controlled by one button. USB power: Use built-in 2200mAh rechargeable battery to charge with supplied USB cable. 3-5 hours after fully charged. A variety of uses: Portable and foldable design can be used as a hand-held fan and a desk fan. A special design - it can also be attached to the umbrella, put your hand outside. Very suitable for travel: Lightweight portable, very suitable for summer travel, camping, tanning Small, Compact, People Also Suitable For Office Operation Of Mini USB Portable Foldable Battery. Characteristics: Multiple Use - A fan can be used for any occasion. Besides handling, fans can also be used for desktop computers, umbrellas, camping tents. Press the button again, from low, medium to high, has 3 speed levels. Product size: Figure Battery: 18650 Lithium Ion 3.7V/2000MAH Material: ABS Tag: 4/4 inch Net Weight: 215G Output power (NAX): 3W Input Current (A): 0.5-1 Loading time: 4-5 hours working time: 2-4-8 hours of Includes Assortment: 1 x portable fan 1 x USB cable