Replacement for Joy Cons Charging Dock This charger is matched with the original switch console dock, charging for Joy con. It is available to charge 1-4pcs of it at the same time so that It will help you save time and increase efficiency. Easy to Use Just connect the charger to the original console dock to get power input, and then plug your switch controllers into the charging station. NOTE No extra cord needed. It has a USB plug built into the side, just plug into your Switch8217s docking station and use the power from there. Integrated design, simple and does not occupy space. Security Protection The charger dock for joycon built-in protection chip is with perfect over-charge, over-voltage, over-Current, over circuit protection functions, more safe and reliable. Low standby power consumption, electricity-saving, and environment-friendly.