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 confirmed to be functioning correctly. - Normal operation has been confirmed both wirelessly and when connected to the main unit. [Warranty] - If there is a functional defect, please notify us via transaction message within 3 days of product arrival and before rating the product, and we will handle it as an initial defect. * The serial number is recorded to prevent product substitution. [Other] - We have removed dirt as much as possible, but please check the photos for any scratches or stains. - The product will be disinfected with alcohol and shipped with scratch protection. - To prevent trouble, we do not accept cancellations after the product has been shipped. (As we've had instances in the past where the product was not returned.) - Single items are the main focus of our listings. If you would like to purchase a left and right set or multiple items, please contact us via comment. (We will offer a discount.) Please understand that this is a used item before purchasing. #nintendo #switch #任天堂 (Nintendo) #ニンテンドー (Nintendo) #ジョイコン (Joy-Con) #joy-con