There are currently two different types of headsets for VR: tethered and mobile. Tethered headsets are physically connected to a powerful computer using wires, allowing them to make use of the processing power available to track positions, movements, etc. Tethered headsets give the user a freedom of movement beyond turning their heads and additional interactivity. However, they require the user to stay within a certain distance of the computer, as the user’s headset must stay connected physically to the computer, and are relatively expensive compared to their mobile counterparts. Mobile headsets can be taken anywhere, since they do not require a physical connection to a processor, and are far cheaper than tethered headsets. While they don’t limit the movements of the user, their lack of additional computing power makes them unable to react to the user’s movements and limits them to look around the environment without interacting with or moving around it.