Nintendo Switch X3 Prototype Joy-Cons

Manufacturing Date is February 18, 2016.; These Joy-Cons feature an unreleased metallic-blue shell color.; The 'SL' and 'SR' buttons on the sides simply say 'L' and 'R'.; The pair button on the side is red.; Unlike the X2 Prototypes, these no longer have the camera-shaped button on the Left Joy-Con, replaced by the more familiar retail camera button.; The board inside is marked with an X3 designation.