Sennheisers new in-ear monitors are all about the metal

Sennheiser’s new earbuds are 3D printed with the same material used in the drill bits for the Mars rover. The IE 600 earbuds have a shell that’s composed of ZR01 amorphous zirconium, lending it a unique aesthetic and remarkable durability.

What the hell is zirconium anyway? Without going into too much detail, zirconium is a shapeable metal that's highly resistant to corrosion. This is why zirconium is frequently used for a variety of industrial and medical applications and is commonly used in steel alloys. So why is Sennheiser using zirconium in its headphones?

One might assume that using this uncommon material would somehow provide you with otherworldly sound quality, but that’s not what Sennheiser seems to be pitching here. Rather,...

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