Virtual reality (VR) typically refers to computer technologies that use software to generate realistic images, sounds and other sensations that replicate a real environment (or create an imaginary setting), and simulate a user's physical presence in this environment, by enabling the user to interact with this space and any objects depicted therein using specialized display screens or projectors and other devices. Google Cardboard is a virtual reality (VR) platform developed by Google for use with a head mount for a smartphone. Through January 2016, over 5 million Cardboard viewers had shipped and over 1,000 compatible applications had been published. Following the success of the Cardboard platform, Google announced an enhanced VR platform, Daydream, at Google I/O 2016. In November 2014, Volvo released Volvo-branded Cardboard goggles and an Android app, Volvo Reality, to let the user explore the XC90. In February 2015, toy manufacturer Mattel, in cooperation with Google, announced a VR version of the stereoscopic viewer View-Master. Android support was available at the viewer's release in fall 2015, with support for iOS and Windows smartphones available later.