The Joy-Con Charging Dock is the easiest solution for charging your Nintendo Switch Joy-Con Controllers. Charge 4 Joy-Con Controllers at a time for multiple players, or keep an extra pair charged for single players to switch out. Simply slide the Joy-Con Controllers down and wait until each charge LED turns green! Key Features Charges up to 4 Joy-Con Controllers simultaneously Individual LEDs indicate charge level for each Joy-Con Easy slide-in design connects each Joy-Con to charger Weighted base for stability Powered via USB