LDW931-2 is a 4G usb wifi router, with a very cool leopard eye pattern, it draws power through the usb port, works as a wifi router. Also can be connected to the USB port of the computer, work as a USB modem. Plug amp; play, does not need a CD driver.Please make sure that your computer software or firewalls allow you to install the USB modem driver, otherwise it will not work like this USB modem. You put it in, it will give you WiFi Internet automatically. Package not included, you need to purchase NANO from local operators to use this device. High-speed LTE chipset, support TDD-LTE/FDD-LTE/UMTS/network. Multiple languages. Plug amp; Play, no need for CD-ROM, no driver installation. Up to 10 users WiFi accessSupport frequency band:4G LTE : B1/3/53G:B1/B8You can check the frequency bands in the link,l#imeiSettingAnd write in the new IMEI, then you can change the IMEI router. This is a feature for professional users to perform tests, we do not advise the usual ones to change the IMEI of the device to get cheaper internet traffic, not technical support for such traffic. Super 4G USB dongle; Innovative Nano SIM technology in USBSupport Win2000/2003/xp/Vista/Win 7/Win 8/Win 10/LinuxInput power: 5 v1aOperating temperature: -10 deg; C-45 deg; cType: Wireless 4G Wi-Fi RouterModel: LDW931-2Wi-Fi Supported Frequencies: 2.4GS2.4G Wi-Fi Transmission Speed: 150 MbpsFeature: FirewallMax. LAN data rate: 150 MbpsStandards and protocols: Wi-F