Rechargeable large capacity battery-2600mAh rechargeable 18650 lithium ion battery can provide customers with 3 to 10 hours of working time (including battery). Long working hours, you do not need to recharge and replace batteries frequently. The mini handheld fan is very safe and efficient, and is a must-have item for you in summer.Convenient USB charging-This USB desktop fan is compatible with all USB output devices. Using a USB charging cable, it can be used in conjunction with 5V output adapters, USB chargers, laptops, power banks and other USB-enabled devices, and can charge them. When you go out, you can put it in your bag and take it with you.3 Adjustable settings-multi-function fans-indoor and outdoor portable fans-low, medium and high speed levels. Press the power button repeatedly to adjust the appropriate fan speed. It allows you to cool down quickly and avoid summer and hot flashes. Very suitable for home, office, school, travel, gym, barbecue, camping and outdoor activities, but also very suitable for baby sleep.Portable design and low noise-very compact and portable. The innovatively designed fan blades are designed to simulate natural wind and bring you natural, comfortable and cool wind. Using a high-quality brushless motor, it can produce the highest speed with minimal noise. Let you enjoy quiet study, work and sleep environment.Hand-held fan with a base-it has a removable non-slip base that can be used as a desktop fan, making it easy to use on the table when studying or working. At the same time, you can also hold the fan. The streamlined handle makes you more comfortable to hold.Material: PlasticFull yin duration: 8 hoursBattery capacity: 2500mahWhether to support shaking your head: No