Inside the headband, we note a Class 1 Laser label. It might seem like a scary thing to find on your eyewear, but it's safe for all normal use conditions and likely no more dangerous than a CD player.

Twirling away the standard Torx screws and removing the panel reveals the first of two speakers, wired via spring contacts, and protected by color-coded gaskets—great repairability so far!

Also hiding under those panels: the two upper ends of the device's single built-in cable—and a few of the magnetic bits that help adjust the fit.

But what's that odd little black box protruding from the right side of the headband?