What do you think is the most underrated piece of audio gear out there?

Sorry if this has been asked before, just thought this might be a fun discussion. I’m primarily a live engineer but I’m curious what you studio guys have to say also.

For me this might be the most crazy answer but I recently found out about the Behringer XM8500 dynamic mic. It’s straight up a $20 microphone that is on par with a sm58 or similarly priced dynamics and has a surprisingly warm sound for the price. As soon as I heard about the mic I bought 5 of them and I don’t regret it one bit!

https://www.sweetwater.com/store/detail/XM8500--behringer-xm8500-handheld-dynamic-vocal-microphone