Welltop&reg; Electric Portable Mini fan Rechargeable Desktop Fan 4-inch Vanes 3 Speeds Battery/ USB Powered Household Summer Cooler Cooling Operated Cool Cooler Fan with 18650 Rechargeable Battery and USB Charge Cord (Pink) 3 Settings - High-Medium-Low, gives you a refreshing breeze on low and cools you off on high in hot summer. NOTE: Speed levels CAN'T be adjusted and only medium speed (2) is available while plugged in. Battery Operated Fan - It is powered by 18650 lithium-ion rechargable battery( INCLUDED), or plugged in via the usb cable. NOTE: REMOVE the plastic film of the battery before use, or it won't hold a charge. Mini Personal Cooling Fan - With palm top size (measuring only 4 inch), this cordless fan can be carried around for portable use. It is perfect size to sit anywhere or put in your bag. Super Quiet & Powerful - Using the brushless motor, it puts out a lot of air flow without being noisy. Integration Design and Solid Structure - It is very small and handy. You can bring it to anywhere you want. Ideal for outdoors, camping, traveling, car backseat, office, and anywhere need cool wind.