Sean_B1: You - the SECOND poster on the FIRST page of this thread, and I believe the ONLY Apple employee chiming in here - marked this Solved but this DID NOT SOLVE THIS ISSUE. I suspect your having marked this in this manner made it so that there are now NINE PAGES of complaints from eight months ago, and I believe your response is the only one from Apple.
I have the identical headphones to Dongsky1108. They are branded AKG but are listed as Samsung manufacture and the model number is EO-IC100BBEGUS (the same unit sold in Europe carries the same number but EU at the end rather than US).
I spent a long time on the phone with Apple support when I discovered this issue, and they asked me to visit an Apple Store and plug my headphones into a Mac computer (the agent provided a MacBook for the purpose). It did not work either.
The steps you provide in your "solved" email do not work because the issue is that a USB device requires a driver. The device in question has a driver with two parts (maybe two drivers), one of which still functions: the controls (volume+/- and Pause/Play) work. But the one that says to the OS "We have headphones/earbuds connected. Stop the loudspeakers and channel the audio to the headset" has been disabled, either accidentally or intentionally).
It should be an easy matter to fix...unless Apple's true message here is the one located on the last page of this thread: “We don’t care and issue will not be fixed”.
If so, Apple is truly not in the user's corner and only wants to promote the sale of wireless earbuds. If I'm forced to buy such, rest assured they will NOT be from Apple.