You don’t necessarily need an internet or Wi-Fi connection to send signals via your HDMI transmitter, but without an internet connecting, you’re very limited in what you can do. With a steady and stable internet connection and a wireless HDMI dongle, you can connect and send video and audio from online sources, play games or even have a video conference call right in your living room. In terms of entertainment, you can watch many sporting events a low latency, so you’re not going to see the action too long after it’s already happened. You can also watch movies via YouTube, Netflix or any otherplatforms for a full entertainment package. If you want to take your transmitter to a vacation home or for business purposes, you should still be able to do these things using portable or mobile internet.\r