It also supports PS Classic, Switch, and PC, but I love using Retro Fighters controllers! Especially on original console hardware. I've gotten the Hunter (Original Xbox) Brawler64 (N64) and BattlerGC Pro (GameCube) so far and I wanna get the StrikerDC Wireless for my Dreamcast at some point.

They have all the modern conveniences you would expect from modern controllers, but of course work with original hardware.

They're already had a base Defender controller, but they just announced a Pro variant. Going up on Kickstarter, but they'll still sell on their website and Amazon, etc. I personally love the thought of one controller being playable on multiple consoles.

I use my Dual Sense on PS1 and PS2 and PS3. PS1 and PS2 I use a dongle that let's me use it wirelessly. PS3 tho just plug in USB and it works.

Thanks for the info.  Will put these controllers on my wishlist.