Microsoft HoloLens is a smart-glasses headset that is a cordless, self-contained Windows 10 computer. It uses advanced sensors, a high-definition stereoscopic 3D optical head-mounted display, and spatial sound to allow for augmented reality applications, with a natural user interface that the user interacts with through gaze, voice, and hand gestures. Codenamed "Project Baraboo," HoloLens had been in development for five years before its announcement in 2015, but was conceived earlier as the original pitch made in late 2007 for what would become the Kinect technology platform.

Microsoft has targeted HoloLens for release "in the Windows 10 timeframe," with the Microsoft HoloLens Development Edition to begin shipping in the first quarter of 2016, available by application to developers in the United States and Canada for a list price of US$3000.