【Super Long Battery Life】ATEngeus fan has a built-in 10,000mAh high-capacity battery, which can work continuously for 6-72 hours depending on the wind speed after being fully charged. The indicator light with 3-level power display can tell you to charge the fan in time. 【4 Wind Speeds & Timing Function】This rechargeable fan provides 4 intelligent wind speeds: low, medium, high, and super strong. At the same time, it also has a 3-level sleep timing function (1/3/5 hours). When the set time is reached, the table fan will automatically turn off. Whether indoors or outdoors, it can meet your different cooling needs in hot weather. 【180° Rotation & Portable】This portable USB fan can rotate 180° vertically, you can rotate the fan head up and down to ensure you are always in the right position to enjoy the fresh air. The ergonomic handle makes it easy to carry and can be used for camping, hiking and outdoor work. Always in the right place to enjoy fresh air. 【2-Level LED Light】This