These glasses are a step back from an ambitious plan that once called for Apple to launch a variety of mixed and augmented reality devices.

The news follows a report from Nikkei Asia on Tuesday that raised concerns the company’s foldable iPhone could be delayed due to challenges during the phone’s engineering test phase.

The successor to its premium headphones cost $549 and are launching with enhanced active noise cancellation, the H2 chip, live translation, better sound quality, and more.