[rayyy]

These will likely be prohibitively expensive given the cost of materials. Considering that the headphones cost $29 and that each magnet (in bulk) costs $0.90, you're looking at headphones that cost $99.20 to produce in materials alone. After labor, fixed costs, and profit, you're looking at a very expensive pair of headphones with bad sound quality.

This is a cool idea but the price of rare-earth metals might be its undoing.

[fluxxy]

You are right, magnets are expensive. However, we have already found suppliers and the cost of the headphones will be $49.95.

[rayyy]

Cool! It's good that you found a cheaper supplier.