Spending a lot of money on a product, treating it with care, keeping it in its case, and never throwing it around, and then seeing it break down is especially frustrating. A growing number of owners of the Sony WH-1000XM5 appear to be describing precisely that, and it has now progressed beyond online forums and into federal court.
Sony Corporation of America and Sony Electronics Inc. are named as defendants in a class action lawsuit filed in the Southern District of New York. Ian Kanter, the plaintiff, claims that the WH-1000XM5 headphones have a structural flaw in the swiveling hinge mechanism that eventually causes the earcups to separate from the headband frame during what he refers to as regular, everyday use.
The failure point is specifically mentioned in the complaint. The lawsuit claims that the earcups’ swiveling motion strains an internal plastic hinge that Kanter described as “poorly secured.” The plastic eventually fractures, deforms, or separates completely as a result of that stress. The outcome is more than aesthetic. The headphones cease to function as headphones when the hinge breaks.
What Sony allegedly did—or did not do—in response is what elevates this above a typical product complaint. Kanter asserts that Sony has known about this problem for a while and has consistently opted to reject warranty claims rather than admit a manufacturing flaw. Many consumers who contacted us were informed that the damage was self-inflicted and categorized as accidental or physical misuse. Sony’s limited warranty does not apply under that category, and customers are left to pay repair costs that are reportedly as high as $370, which is a high cost for headphones that were originally sold for less than $400.

Beyond this particular lawsuit, the pattern is evident. Owners describe almost identical situations in Better Business Bureau filings, Reddit threads, and Sony’s own user forums: warranty claims being rejected, cracks showing up at the hinge within months of purchase, and the gradual realization that they might have to pay nearly full price again just to get the product working. It’s difficult to ignore how consistently the experience is described—the same corporate response, the same failure point, and the same timeline.
The WH-1000XM5 is marketed by Sony as robust and travel-ready. Because travelers frequently fold and unfold headphones, this placement is important. There is a legitimate concern about whether the product was sufficiently tested for the life it was being sold for if folding is the intended use and the hinge is the weakest point.
Kanter wants to represent state subclasses in Nevada and New York as well as a national class. Unjust enrichment, fraudulent concealment, breach of express and implied warranties, and violations of various consumer protection laws are among the legal allegations. In addition to seeking actual, punitive, and treble damages, he is requesting a jury trial.
It’s still unclear how Sony will formally react in court or if this will encourage them to implement a more extensive repair or replacement program. The WH-1000XM5 hinge problem appears to be more than just a few rough handlers’ complaints. It appears to be more of a systemic issue disguised as user error, and enough people think so to have retained legal counsel.
The cost of ignoring customer complaints has already been made public, regardless of whether the lawsuit is successful or ends in a quiet settlement.

