Authentic product. This is a used item. The sticks have been replaced with new ones. [Functionality] ・The sticks and all buttons have been serviced, and normal operation has been confirmed. ・Normal operation has been confirmed both wirelessly and when connected to the main unit. [Warranty] ・If there is a malfunction, we will handle it as an initial defect if you contact us via transaction message within 3 days of arrival and before you rate the product. ※ We have recorded the serial number to prevent product replacement. [Other] ・We have removed dirt as much as possible, but please check the photos for any scratches or stains. ・We will disinfect with alcohol and take measures to prevent scratches before shipping. ・To prevent trouble, we will not accept cancellations after the product has been shipped (as we have had cases where the product was not returned in the past). ・The main items for sale are single items. If you would like a left/right set or multiple purchases, please contact us via comment. (We will offer a discount.) Please understand that this is a used item and purchase accordingly. #nintendo #switch #nintendo #joy-con #joy-con