Virtual reality (VR) is intended to be an immersive experience and typically requires equipment, most commonly a headset. Often times wearables are worn to further simulate the user's motion in the environment and make it even more realistic.
Currently, the most immersive VR experiences require a computer-tethered headset. More cost effective ways to experience VR have arisen leveraging devices such as smartphones and a low cost “shell” containing optical lenses. VR has potential uses in the entertainment industry, education, and training among many other applications.