WIRELESS MOBILE MINI TRAVEL ROUTER Convert a public network (wired or wireless) to a private Wi-Fi for secure surfing. Tethering. Powered by any laptop USB, power banks or 5V/2A DC adapters (sold separately). 39g (1.41 Oz) only, portable and pocket friendly. 2.4GHz ONLY OPEN SOURCE & PROGRAMMABLE OpenWrt pre-installed, USB disk extendable.