Quick overview from the supplier:
4G LTE Wi-Fi AC Dual Band Router TP-LINK, "Archer MR400", 1167Mbps, 2x Detachable Antennas
// Cutting-edge 4G network – share internet access with up to 64 Wi-Fi devices and enjoy download speeds of up to 150 Mbps
AC1200 Wi-Fi – creates simultaneous dual band Wi-Fi networks, with maximum speeds of up to 300 Mbps on the 2.4 GHz band and 867 Mbps on the 5 GHz band
Plug a SIM card and play – no configurations needed, compatibility for SIM cards in 100+ countries are assured by years of field tests
Two detachable advanced LTE antennas – enjoy stable and efficient connections to every device thanks to the two external antennas
Wi-Fi router mode – plug an Ethernet cable into the LAN/WAN port for flexible access as a backup option if you can't get a 4G connection
