Virtual and augmented reality are still pretty new frontiers with a lot of potentially cool ideas yet to be developed. The latest product in the mixed reality space could be coming from a startup called Dopple Works. Lowpass reported that the secrecy-shrouded business from Etsy co-founder and former CEO Robert Kalin is working on a new device called Loop.

Dopple Works has submitted an application to the Federal Communications Commission. Many of the details are not publicly available, but that filing indicates that Loop is battery-powered and will use both WiFi and Bluetooth networks. Lowpass also unearthed a patent application that dubs Loop a “dedicated hand-held spatial computing device.” The application comes with images that show a camera, speaker and tracking sensor that could capture details on an environment, along with a screen for viewing the mixed reality content.

At this stage, there’s not enough information available to speculate on what Loop’s purpose will be. But the photos from the government filings do spark some entertaining mental images of a future where people wandering about doing their best Sherlock Holmes imitations with mixed reality magnifying glasses.