1. SIM CARD SLOT: This mobile WiFi router does not require a broadband connection, only requires a 3G or 4G SIM card, and can connect 10 devices simultaneously, support smartphones, tablets, laptops, etc.2. USB INTERFACE: through the USB port, work as a WiFi router, or plug into the computer USB port to work as a USB modem, plug and play, without the need to install a CD.3. SUPPORT SYSTEM: This wireless mobile router supports for Win 2000 2003 XP Vista 7 8 10 32 64 bit system, suitable for OS 10.4 or higher operating systems, for Linux, and supports firewalls.4. APPLICABLE SCENES: This wireless hotspot has a compact size, and suitable for scenes such as gatherings, travel, business trips, work, outdoor live streaming, gaming, and in car WiFi.5. EXCEL CHIPSET: The mobile WiFi hotspot adopts high speed 4G LTE chipset, with stable performance and an effective WiFi distance of up to 10 meters, which is efficient and practical.Spec:Item Type: Mobile Hotspot WiFiProduct Material: ABSColor: WhiteCard Slot: Standard SIM Card Slot (SIM card not included)4G LTE-FDD: B1/B3/B5/B7/B8/B204G LTE-TDD: 38/39/40/413G WCDMA: B1/B2/B5/B8GSM: 900/1800/1900/850WiFi: Supports 802.11 b/g/nSharing: Up to 10 UsersWireless Standard: IEEE802.11b/g/nHow to Use:Take out the product and use it directly.packing list:1 x Mobile Router1 x User ManualNote:Make sure your computer antivirus software or firewall allows the installation of USB modem drivers, otherwise it will not work as a USB modem.Even if your SIM card is compatible with hotspot WIFI devices, it may not be plug and play, and you may need to disable the SIM PIN and modify the APN.