【4000mAh Rechargeable Battery】The 4000mAh high-capacity battery provides you with 4-8 hours of coolness, and you can place the desk fan in any position without being limited by the power outlet. The desk fan is also equipped with a power indicator, allowing you to see the available power at a glance. 【Powerful Airflow】Cool down quickly and feel cool instantly. The desk table fan uses a high-quality brushless motor for faster blade rotation and more powerful wind. Whether you are at home, in the office or outdoors, you will feel cool in 3 seconds. 【Quiet Operation】With its advanced silent design, the desk fan operates smoothly and powerfully to minimize noise. You can enjoy the cool breeze while reading, doing yoga, meditating or relaxing. The quiet fan will be your perfect companion to relax and unwind. 【Automatic Oscillating Design】Wider air diffusion angle. With the push of a button, the desk fan can rotate 120° left and right. With 4 adjustable air speeds, you can adjust the usb