【Extended Battery Life】 The WarmCo portable fan features a built-in 5000mAh high-capacity battery and energy-saving technology, providing long-lasting battery life and energy efficiency. With a runtime of 7-24 hours , you can enjoy a cool and comfortable day without worrying about running out of power. Perfect for travel, makeup, eyelashes, camping, outdoor activities, and indoor use, this mini portable fan is a must-have. 【3-in-1 Multifunctional Fan】 Not only is it a handheld fan, but with a 180° foldable angle, it can also be used as a desktop fan. In addition, you can use it as a neck fan with the provided lanyard, freeing your hands and making it convenient to carry while traveling. 【Quiet Operation and 4 Adjustable Speeds】 The WarmCo personal fan is equipped with a high-quality brushless motor and advanced silent motor technology, which reduces noise while maximizing airflow. With 4 adjustable speeds, you can easily switch between different levels of airflow, keeping you cool and comfortable whether you are working, sleeping, or relaxing. 【Smart Digital Display】 This mini fan is equipped with a smart digital screen that displays the current wind speed and remaining battery power. This allows you to adjust the fan to your desired speed level and know when it needs to be recharged, avoiding running out of power when you are outdoors. 【Convenient Portability】 The WarmCo fan is lightweight and portable, measuring only 19.5*9.1*3.5cm. It is suitable for various occasions, whether you are at home, in the office, traveling, or camping. It can easily fit into your bag or backpack, allowing you to enjoy a cool and comfortable experience wherever you go.