this is pretty easy to figure out, I thought it was going to be a little confusing and I think I was just confusing myself. you get an adapter that has an hdmi connection, you need to plug it into your tv, also connected on the same wire is a wifi connecter and an usb end. the usb needs to be plugged into your tv in the usb port 5v1a or 3.0 port. if you do not have one, you can simply get the ac box to plug into the wall. it does come with one. so I was able to plug both into my tv, I have a 55 inch Samsung smart 4k tv. now the port with the hdmi, pay attention to which one you plugged it into, because you will need to turn your tv to that channel. I used port 3 so I changed my tv to that channel with the source button. on the screen it will be blue with two boxes one with a QR code and one with a wifi signal. I was super confused here, because I was trying to read the little instructions they give you, it was not working so well. so I just ignored them, and I scanned the QR code with my phone which took me to the link to download the app for my phone. after I gave my google password it detected it right away and I was connected to my tv via phone. you can turn on and off the connection to your tv in this app and its super easy, I have a router too and I did not have to mess with that. when displaying your phone on the tv, the sound is also displayed and you will not hear sound from your phone while it's connected. I did notice a slight delay between the two, but my phone is older that could be the issue. I have a Samsung galaxy s5. you can also connect iPhone as well. also the phone picture on the tv will be like your phone, unless you turn your phone sideways it will then take up the entire screen. I really like this, and I can show my movies and pictures on tv now, so that is fun, and also social media as well. I really like this and its simple to use, I just suggest that you not really look at the directions once you have the box plugged into your tv, just follow the screen from there.