You are mainly paying for the R&D for the headphone, not the cost of materials, but of course you can build and try your own with varying amounts of success. If you make a good one that’s when you start selling it online lol
You are mainly paying for the R&D for the headphone, not the cost of materials, but of course you can build and try your own with varying amounts of success. If you make a good one that’s when you start selling it online lol