JISULIFE handheld fan Mini fan 3 in 1, with 4500 mAh power bank USB battery small, battery operated max 37 hrs runtime portable fan, flashlight function-black

["Long Battery Life"] The Mini USB Fan is equipped with a built-in 4500mAh battery that supports 20-37 hours of operation. 37 hours of operation at speed level 1, 33 hours of operation at speed level 2, and 20 hours of operation at speed level 3 on a full charge, allowing you to enjoy the fan all day at outdoor or indoor events. ["Powerbank Function"] 5V/1A USB output turns the USB hand fan into a powerbank (4500mAh) for emergency charging of your mobile phone. ["Flashlight Function"] The hand fan is quite bright and can be useful in dark areas or during power outages. ["USB Rechargeable and Touchable Blades"] This USB Rechargeable Hand Fan can be charged via computer, laptop, or USB power adapter. It only takes 2-3 hours to fully charge. With special soft TPE material, the fan blades are very safe. If you accidentally touch the rotating blades, the soft blades will automatically stop and protect you. ["Foldable and Portable"] The size of this portable fan is only 4.7 * 1.4 * 1.4 inches, weight: 4.4 ounces. It can easily fit into your pocket or handbag when you are on the go to Disney, camping, etc. The foldable design makes it easy to carry and store.