Huawei E5573 is a new 4G mobile hotspot with LTE Category 4 technology, so it can support the download speed to 150mbps and upload speed to 50mbps. On the front, there are two single LED indicators for battery and signal strength. The back cover of Huawei E5573 is removable, and it seems Huawei E5573 has the external antenna connectors. Like its predecessors Huawei E5372, Huawei E5573 could work well on the 4G/LTE network, while 3G and 2G networks are backward.
There are many sub-models for Huawei E5573 and this page is for Huawei e5573s-606