joy-con charging dockthe joy-con charging dock is one of the easiest solution for charging your nintendo switch joy-con controllers and keeping track of them. charge up to 4 joy-cons at a time or keep an extra pair to switch out. simply slide the joy-con controllers down and wait until each led changes from red to green.simple & convenientconnect the charging dock usb cable directly to your console or other device. the weighted base provides stability and conceals an underside cable wrap to keep things neat.keep on playing!individual leds indicate the charge status for each joy-con. red when charging and green when fully charged.where are my joy-cons?easy slide-in design connects each joy-con to the charger. keep them on display, rather than losing them in the couch cushions.