Mobile World Congress isn't just about new cell phones. There's also a ton of networking gear on display and other crazy, extremely specialized contraptions that you'll probably never see unless you go to the show.

This gallery is dedicated to everything at the show that we walked up to and had to ask a booth rep "What the heck is that?" or "Tell me more about this." Some of the booth reps had an "if you don't already know what this is, you're wasting my time" kind of attitude, and others just didn't speak English, but we still tried to get as much information about everything as we could.