"Headphone manufacturers" refers to companies or businesses that produce or make headphones, which are devices you wear on your ears to listen to audio. Full definition
I wish other headphone manufacturers would follow this example. (techhive.com)
Every gaming headphone manufacturer seems to boast about surround sound these days, but very few headsets actually deliver genuine spatial audio. (techspot.com)
However, this problem can be side - stepped if headphone manufacturers use a removable cable. (soundguys.com)