Promotion USB fan 1. Good looking, 2. Simple to use, 3. Safe. Promotion ... safe.4. The angle of the USB fan can be adjusted.5. The plastic fan blades are soft and safe.6. Strong ... .5*13*10cm.11.Other names: USB fan, fashion USB fan, mini USB fan, USB powered fan, USB laptop fan, USB cooler fan, USB hub fan. Promotion USB ...