... , IEEE802.11g, IEEE802.11nLithium Battery:5V1A, USB-powered, 1500mAh 3G Card:Built-in 3G module Features of 3G card:Networking Type:WCDMA/UMTS/HSDPA/HSUPA,GSM ... stronger when in cafe under wifi with a sim cardMini design,easy to carryCould be used for PC,tablet PC,Several PC ... ,we will fix or replace new one. Wireless travelling mini 3G wifi router BNT-R3G-1-3