- Rechargeable Battery: Look for fans with long-lasting batteries that can be easily recharged via USB 1.
- Multiple Speed Settings: A fan with adjustable speed settings ensures you can customize the airflow to your needs 1 2.
- Compact Design: A foldable or pocket-sized design makes it easy to carry the fan around 1 3.
- Additional Features: Some mini handheld fans come with extra features like flashlights, power banks, or LED displays 1 4 5.