3G wireless router 1. mini portable 3g router 2,. wiht SIM card slot, HSDPA 2100Mhz 3.1500MA battery Adopt standard USB connect, ... Connect to directly take to put through USB, take and use ... built-inbattery canprovide For 2hours longlifeOther features:set wireless router, wireless card, U disk in one mini 3g pocket wifi router with SIM slot