- Wearable neck fan for hands-free cooling. Stay cool anywhere, anytime. Hang the micro USB fan around your neck and take it with you. Lightweight and comfortable, it helps avoid fatigue. Helps with hot flashes, sweating, and flushing. - Portable personal fan. Compact size for easy carrying or storing. Safe design with a narrow gap that prevents a child’s finger from entering the blades. USB powered for convenient use. - Powered desk fan. Energy source: USB port rechargeable model. It can also be powered directly by batteries, but you must remove the insulation from the battery compartment, otherwise it will not recharge or run. The USB cable can be charged from a computer, mobile power, power bank, or similar USB sources. - Powerful and quiet. Upgraded CPU fan blades deliver strong airflow with low noise. Three speed settings to satisfy different cooling needs. Safe to use. - Use scenarios. Outdoor activities such as hiking or commuting; desk work or study; travel or on the go.