Hololens is an augmented reality viewer. It is a mixed reality smart glass produced by Microsoft. The HoloLens gaze controls are responsive and not difficult for any user to control. Although the Hololens has an excellent resolution and superb spatial sound, the battery life spans short and the device can be hard to fit. The HoloLens images look very real as it has a sharp quality and slight jitter too. The holographic shapes behave like real objects as you move around with the device.