HOTGEE(TM) Quietness Metal Computer Laptop PC USB Plug Charger Mini Desk Cooler Fan with Nail Dust Collector Function (Black, 7.9") Product Name : Mini USB Fan; Voltange : DC 5V Material : Metal; ultra-quietness Cable Length : 1.2M / 3.93ft;Fan Diameter : 13.7cm / 5.4" Size(Adjustable) : 15585155mm/ 6.1" x 3.3" x 6.1" (L*W*H); Net Weight : 390g. Please confirm the dimension patiently before purchase. One year warranty