Desktop Circulating Fan, USB Rechargeable, High Wind, 4-Speed, for Office/Dorm/Home

This desktop circulating fan is USB powered and rechargeable with a built-in lithium battery. It features a brushless motor, 6 or more blades, and 4 wind speed settings. Noise level is 36dB(A)-45dB(A). Battery capacity is 2000mAh-4000mAh, providing 6-8 hours of use. Net weight is 529g. Dimensions are 17*9.1*18.2cm. Made of ABS material. Suitable for outdoor use. Style is modern minimalist. Brand is other, model F15. It is not patented and not a cross-border export dedicated supply source.