... Specification: StandardEE802.11n,IEEE 802.11b,IEEE 802.11gRF Frequency2.4~2.4835GHzNetwork ProtocolSupport TCP/IP, NAT, PPPoE/PPTP/L2TP, ... 1500mAh BatteryAntennaBuilt-in 2Dbi,External antenna option for PCB onlyInterfaceUSB2.0 for 3G usb modemLEDPower,charge,3G,wifi,Wan/LanEnvoirnment ... non-condeensionDimension95X50X14MM 150M MINI wireless 802.11b/g/n Usb port and battery Portable MIFI 3G router