HOTGEE(TM) 7.9" Quietness Metal Computer Laptop PC USB Fans USB Plug Charger Mini Desk Cooler Fan with Nail Dust Collector Function (Green) Product Name : USB Fan;Voltange : DC 5V Material : Metal; ultra-quietness Cable Length : 1.2M / 3.93ft;Fan Diameter : 18cm/7.0 in Size(Adjustable) : 200100200mm/ 7.8 Package Content : 1 x USB Fan