The E5577Cs-321 mainly supports the following features:  LTE FDD (DL) data service of up to 150 Mbit/s  LTE FDD (UL) data service of up to 50 Mbit/s  DC-HSPA+ (DL) data service of up to 43.2 Mbit/s  HSPA+ (DL) data service of up to 21.6 Mbit/s  HSDPA (DL) data service of up to 14.4 Mbit/s  HSUPA (UL) data service of up to 5.76 Mbit/s  UMTS data service of up to 384 kbit/s  EDGE data service of up to 236.8 kbit/s  GPRS data service of up to 85.6 kbit/s  PS domain data service based on LTE/UMTS/GSM  SMS based on LTE/UMTS/GSM  Built-in LTE/UMTS/GSM and WLAN high gain antenna  Wi-Fi 2.4 GHz and 5 GHz bands  LTE/3G/Wi-Fi auto offload  Menu-style LCD UI  Support for HUAWEI HiLink APP(Mobile WiFi APP)  Press and Play  Micro Secure Digital Memory (microSD) Card  IPv6/IPv4 dual stack (optional)  Built-in DHCP Server, DNS RELAY and NAT  Online software upgrade  Traffic statistic  WPS  TFT-LCD screen  Standard Micro USB interface  2D Barcode easy connection