I want an audio and mic solution for original xbox one

You are just going to have to go with an etailer like Amazon or eBay then

if you have the original controller without a 3.5 jack then you can get the stereo headset adapter or a turtlebeach adapter then plug in a normal headset.

the xbox does not support audio over usb (only very limited licenced headsets which are rare)

That’s the problem I cannot find any xbox original accessories where i live i if I could I would have already bought it i am looking for an alternative

if you have the original controller without a 3.5 jack then you can get the stereo headset adapter or a turtlebeach adapter then plug in a normal headset.

the xbox does not support audio over usb (only very limited licenced headsets which are rare)

Guess it depends what region they are in as to whether their Amazon variant sells it...the UK Amazon site has the Turtle Beach audio adapter for sale...I found it to be an excellent product. However, if the OP has plans to then get a Series X or S, they may want to avoid it as the Turtle Beach adapter doesn't work properly on the new controllers (no party/game mix functionality)...the OG adapter does works but is not easy to find given it's no longer produced (I got a brand new one recently on eBay)

I frustated with this lack of options too. I bought Halo MCC e Gears of War UE, and if I want play the original audio, I must change the setup of xbox one for english/original audio of game, but subtitles in the same language of audio. Microsoft, CMON! I
want OPTIONS of languages in your games, don't force audio and subtitles in the same language, because the audios/subtitles are inside the disc.

It's like buy a foreign Bluray/DVD movie with only dubbed option with subtitles, but the original audio still there, but if you choose the original audio, the subtitles will only be in the original audio.