Once you dip below the $50 mark in the portable headphone market, you're generally going to be looking at a noticeable drop-off in sound quality. That's why we're always pleasantly surprised to come across earphones that manage to provide good audio at a low price--even better if they're comfortable, as well. The Yamaha EPH-30 is one such set, and though they're not without their pitfalls, we have no qualms about recommending these $40 earbuds.
Up for a challenge?
Put yourself to the real tech test by building your own virtual-reality headset with a few household items.