Does the standard wireless controller from...

It's the standard wireless controller https://www.xbox.com/en-US/accessories/controllers/xbox-wireless-controller

I have tried a test with the controller with iOS, since iOS can now use bluetooth controllers, for fun i paired a standard Xbox1 controller and worked no problem, the Xbox Elite Wireless Controller Series 2 does not pair with my iPhone 11 Pro Max where the
standard Xbox 1 controller does.

While I dont use my phone for playing games, i just thought to try it out for fun

Hi there.

What controller does he have? Is it just the standard controller that came with the console?

Also, is he using the standard AA batteries or a play and charge kit? If he's using the kit, does he charge it from the console or from another source (like an outlet or a PC)?

Yes the standard for Xbox one controllers is now Wireless.

Yeah just get the chat adapter and plug any headphones with the standard 3.5mm stereo jack and your good to go. Just set the balance on the chat adapter to full game/system audio and your good to go for wireless audio from your controller like the Ruku remote
does. $25 for the adapter, but if you get one of the headsets designed as a wireless headset through the controller for the Xbox One they all come with the chat adapter as well.