Epson announced an update on Monday to its Moverio smart glasses at Mobile World Congress in Barcelona, bringing a nice but incremental enhancement to a device that’s aimed at enterprise users and consumers alike.

The new Moverio BT-300 headset got a major upgrade in the form of organic light emitting diode (OLED) display technology. Using OLEDs allows the black parts of the glasses’ displays to appear more transparent to the user. That means applications that want to mix digital and physical objects work better with this new headset.

That’s important for users who need to use the glasses while working. I tried out a demo of a prototype of the glasses prior to this announcement, and while they are clearer than the BT-200 model, it still looks like there is a gray box floating over the world where the glasses’ displays are. 

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