... Support RJ45:1 LAN port, 1 WAN port, USB port for external modem, Micro SD slotProtocol support: TCP, UDP, SMTP, POP ... (PWR, 3G, WIFI, SYS, WPS)Support USB flash driver for firmware update;Support USB cable for power charge with computer 5VDimension: 110 x 65 ... Battery with Capacity: Li-ion 2000mAh4-6 hours operation48 hours for idle time Pocket 7.2Mbps 3G WIFI Wireless Router-MH668B