I talked to Xbox support, they told me that only Xbox One Sonly Xbox One S models have Bluetooth.
Xbox 360 wireless models works wirelessly with Xboxes only, or PCs with a distinc USB adapter. I don't know if you can use that adapter for Mac as well.
However, Xbox One S works. I bought one, and I can confirm it works like a charm via Bluetooth. No additional hardware or software is needed.