The Sony ILCE7RM2/B a7R II Full-Frame Mirrorless Interchangeable Lens Camera, Body Only has a number of different shutter modes, from standard shutter operation to a completely silent electronic shutter. This clever video from Jonathan Stewart shows the different shutter modes of the Sony a7RII in slow motion.
Each mode is detailed and then triggered and you an see exactly how the a7RII handles capturing an image.