UNHO Original Xiaomi Flexible USB Cooler Cooling Portable Mini Fan for Power Bank/notebook/laptop/computer (White) Genuine xiaomi mini portable USB cooling fan Plug and play,Less than 0.6W;DC5V;120mA;25.8db ultra-silenced (as quiet as a breeze) 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