NAMEO Portable Mini USB Fan, Ultra-silenced Detachable Adjustable Fan for PC Laptop Desktop Netbook Powerbank and USB Devices (Black) Perfect USB Fan for the Office, Home, Dorm, Dtudy, Library or Cybercafe and so on. Plug and play, Less than 0.6W;DC5V;120mA;25.8db ultra-silenced (as quiet as a breeze) keep you cool and relaxed in hot days. Can be use on power pank, laptop, notebook, car charger and other devices with USB port. Unique bendable and detachable design, light weight and mini, can be put into pocket. Long working time with low power consumption.