Dual Power Modes: This versatile clip fan features a polycrystalline silicon solar panel and a built-in lithium battery. Use solar power in daylight or recharge via USB for flexible, lasting cooling anywhere. Compact & Travel-Ready: With a small, lightweight design (approx. 2.8" x 3.4" x 2.8"), this portable fan easily fits in backpacks, luggage, or glove compartments for on-the-go comfort. Versatile Personal Cooling: Ideal for staying cool during outdoor adventures like hiking and camping, hot commutes, desk work, sporting events, or relaxing in your backyard. Three Cooling Speeds: Easily cycle through three fan speeds with a simple button to find your perfect breeze, from a gentle whisper to a more refreshing airflow. Adjustable Clip & Stable Base: The mini fan's sturdy clip securely attaches to hat brims, bags, or tents. It also stands firmly on desks and tabletops, hands-free personal airflow.