These are better for office settings and for town hall-style or keynote presentations.

Of course, the downside is buying and connecting LAN cables to your network. And these extenders are usually less expensive than plug-and-play options.

HDMI extenders that use a LAN cable to connect to your wireless router generally have much longer signal distribution by sending the signal over your wireless network. The downside is that these options generally have a shorter wireless range and are more expensive. What is nice about that is you don’t need an extra LAN cable to your wireless router - it really is plug-and-play. Just recently I switch to Yosemite OS X 10.10 and since them Im not able to display the screen in my TV via HDMI. During that time i was using Maverick 10.9. Plug-and-play options generally use IR signals to send the audio and video signal from the transmitter to the receiver and are best for in-home use. Macbook wont connect to TV via HDMI i have a MacBook Air early 2014 and since i bought it i been using it with a HDMI cable to display the screen in a TV. There are two kinds of transmitters - plug-and-play and options that require LAN. Think of it as when you use a wireless mouse that has a USB dongle connected to your laptop - pretty much the same concept. HDMI extenders use a signal transmitter and receiver to send the audio and video signal wirelessly without the use of having to run a long HDMI cable from the source to the TV.

Long hdmi cable for macbook air