Virtual reality (VR) is a technology that allows users to experience and interact with a simulated environment in a way that feels real. VR typically involves the use of a headset or other device that is worn on the head and displays a 3D environment. The user can move and look around the environment, and can interact with it using handheld controllers or other input devices. VR can be used for a wide range of applications, including gaming, education, and training, and has the potential to revolutionize many industries. However, VR technology is still developing, and can be expensive and difficult to use, which has limited its widespread adoption.