Huawei E5730s is a strong and durable new mobile pocket WiFi router It has Ethernet port, which can connect Ethernet cable to support multiple WiFi-enabled terminals to access internet. Huawei E5730s also has SIM card slot to change 3G signal to WiFi signal. The two working modes makes E5730s working all over the world. Huawei E5730s is also a mobile power bank of 5200mAh. It can work for 16 hours and standby time is around 500 hours.