Great build quality but useless because I can't read properly...
This adapter is built very well, no doubt. A solid piece of metal (or very hard plastic?) and clean construction.
But all of my single-ended headphones have 3.5mm connectors and I'm not observant enough to notice that this product is for 2.5mm plugs. Who releases 2.5mm plugs for their headphones? Not Focal or Sennheiser. English hard. And I don't know anyone who has earphones with a 2.5mm plug to give this to.
But then again, this was my mistake. At $20 though, no biggie to eat this purchase.
If Drop could create a more useful 3.5mm end >> 4-pin XLR instead adapter, I'd buy a bunch. Back to Periapt cables for optimum results.
If you do have anything with a 2.5mm plug, this would be a solid purchase for your gear.