It is a simple tool that allows you to show your phone’s internet with your computer or vice versa from your computer to your smartphone through a USB cable. You basically just download a program onto your computer – I’ll leave that downLink in the description that supports Windows Mac and Linux. You need to enable USB debugging from within the developer options up your phone, and connect your phone to your computer. You’ll be able to browse the web on your computer using your phone’s mobile data, or you can scroll through Instagram on your phone using the Wi-Fi connection from your computer. It’s perfect if your carrier doesn’t allow you to have an unlimited hotspot; or if your phone is having a hard time connecting to the Wi-Fi but your computer is working just fine because it’s connected via an ethernet cable. It is pretty amazing that you will need to eventually pay one time fee to continue to use its every feature