Features: 4000mAh Rechargeable Desktop FanWith 18650 cell battery built in and 4000mAh capacity, the portable desktop fan ensures a long-time endurance without worrying about the power problem. Multiple Power MethodsStandard Micro5 pin USB charging cable is equipped to the table cooling fan, so you can get the fan rechargeable through the USB charging cable. What's more, there are other ways to power the desktop fan, such as via computer and adapter. Low DBThe USB table fan is not only powerful with 4000mAh capacity, but also in low decibel when working. You can barely hear it at low speed which is quite unnoticeable. 360RotatableWith the frame 360 degrees up and down adjustable, you can tilt and adjust the fan at wish, so you can enjoy the cool breeze based on your need. And the smart and compact design allows this USB table fan to be placed anywhere on the table or on any other flat surface. Speed Adjustable The portable fan with 3 adjustable speeds is adequate for your various cooling demand. Just press the power button to change the speed, then it can cool you down quickly according to your preference. Specifications: Product Name: Desktop fan Product Model: M102 Colors: Blue/ Pink/ White (optional) Product Size: 200 * 200 * 66mm/ 7.8 *7.8 *2.6in Product Weight: 360g/12.6oz Rated power:5.5Wh Rated Voltage: 5V=1A Charging Port: Micro USB Battery Capacity: 4000mAh Standard of Execution:GB4706.1-2005 Packing List: 1 * Desktop Fan 1 * USB Charging Cable 1 * Manual