Nintendo Switch HAC-016 Blue Right Side Joycon #134 z65/323
Nintendo Switch HAC-016 Blue Right Side Joycon #134 z65/323,Amazon.com: Nintendo Switch Right Joycon,Nintendo Switch Joy-Con (R) Wireless Controller | GameStop,Joy-Con (R) - Neon Red - Hardware - Nintendo - Nintendo Official Site,The black bit at the bottom of the right Switch controller. It's smooth and feels like an infrared reader but that's in the right stick. : r/whatisthisthing