A fairly simple setup is used for the studio product photos; Canon 7d
MkII, Canon 70-200 lens, and three flashes.For the high key (white) photos I use one flash in a soft box mounted left or right and slightly above the product, one aimed behind the product to wash out the background, and one on-camera
dialed back as a catch-light. The products rest on a curved piece of white matte board.  Minor
retouching is done in Lightroom to remove dust specs on the background, or to
push the background to pure white.   For the low key (black) photos I use the same soft box setup, a second flash on the opposite side dialed way back to create an opposing fill, and one on-camera flash dialed back as a catch light.  The products rest on a glossy piece of black di-bond material, with a black background behind on a far wall.  Minor retouching is done in Lightroom to remove dust specs on the table and to push the background to full black.