This battery operated Camping/Desk fan has a flexible fan body, which could rotate to 350°. When you place the camping fan on your tent, you can adjust the fan body to make perfect airflow to your small environment.
20000mAh built-in battery gives you a considerable amount of hours working time. With this huge capacity, the fan could work for nearly a week on low-speed. Two days on mid-speed and 15 hours on high-speed.