Wifi dongle 3g for Seicane Car Headunit Android

Want wifi signal in your car? If you have an Android headunit (Seicane etc) then connect this usb dongle to the back or with extension cable and now you have 3g wifi in your car! Uses a phone sim card that you can prepay or use your plan etc or can teather free hotspots. You can also use this on any laptop computer to generate a wifi signal vis a sim card or prepaid sim card. Great for traveling in foreign countries. Windows, Mac, ios, android, linux. New in box never used!