Google Cardboard is a customizable virtual reality hardware component. The Google Cardboard API provides access to the functionality of the Cardboard SDK. The Cardboard SDK allows you to create Virtual Reality experiences for Google Cardboard with support for VR features including; Motion tracking, Stereoscopic rendering, User interaction via the viewer button and more. This is indirect access to this service. Please refer to the corresponding SDK below. Google is a technology company that specializes in Internet-related services and products that includes online advertising technologies, search, cloud computing, software, and hardware.