Flexible wind control: A rolling button provides stepless wind speed adjustment, delivering anything from a gentle breeze to a strong wind to meet your needs in different situations. Foldable, portable design: The innovative foldable construction enables compact storage and easy portability while offering precise airflow control with 5 gear wind speeds for various environments. Clear power and performance readout: A definition LED digital display lets you easily monitor the current wind speed and remaining battery, helping you avoid unexpected outages. Longlasting, reliable power: USB charging powers this compact handheld fan for up to 12 hours of use on a full charge, supporting allday comfort away from mains power. Compact handheld form factor: Designed for portability, this fan is suitable for home, office, travel, and outdoor use without adding bulk. Simple compatibility and operation: USB charging makes it convenient to recharge with standard USB sources, keeping you cool wherever you go. Practical use scenarios Commuting or travel: Stay cool on trains, buses, or flights with adjustable wind speed and easy charging between activities. Outdoor activities and events: Use the foldable design and multiple wind speeds to maintain comfort during sports events, picnics, or walking long distances. Desk or onthego work: The LED display helps you monitor wind and battery while you work, study, or run errands away from power outlets.