I'm selling a Joy-Con charging grip. It works perfectly. You can attach the "Joy-Con (L)" and "Joy-Con (R)" to use it as a grip-style controller. Unlike the "Joy-Con grip" included with the "Nintendo Switch (OLED model)" and "Nintendo Switch" console sets, you can also charge the "Joy-Con" while playing using the included USB charging cable or the "Nintendo Switch AC adapter," so you don't have to worry about running out of battery.