1、Portable 4G Router: The 4G LTE WiFi mobile hotspot router does not need to connect to broadband, as long as you have a 3G or 4G SIM card, you can connect to a 4G network. SIM card is not included. Small and lightweight, suitable for gatherings, travel, work, outdoor live streaming, gaming, in car WiFi, and more. Can connect 10 devices simultaneously, supporting devices such as smartphones, tablets, laptops, etc. The effective distance of WiFi can get to 10 meters. 2、Wide Compatibility: A 4G LTE USB WiFi dongle that power through a USB port and works as a WiFi router. It can also be plugged into the computer's USB port to work as a USB modem. Plug and play, no need to install CD driver. 3、Easy Operation: High speed 4G LTE chipset, supporting TDD‑LTE, FDD‑LTE, WCDMA HSPA+, GSM network. Multiple languages. Plug and play, easy to use. Insert a for Windows computer USB port to work as a USB modem. 4、Supported Operating System: For 32/64 bit for Win 2000, 2003, XP, for Vista, 7, 8, 10, suitable for operating system for OS X 10.4 or higher, suitable for Linux. WiFi security mode of open, WPA-PSK, WPA2-PSK. 5、How to Use: Insert the SIM card and then insert it into the PC. Even if your SIM card is compatible with hotspot WIFI devices, it may not be able to plug and play. You may need to disable the SIM card's PIN code and modify the APN. Ensure that the SIM card is activated.