This is a junk item. The right grip controller's R and ZR buttons do not respond unless pressed hard. The left one works normally. One Joy-Con is recognized when inserted into the main unit, but does not charge. Therefore, the SL and SR buttons have not been checked. Other buttons work normally. The other one's stick does not work. Other buttons work normally. Since this is a junk item, the operational checks performed here should be taken as a reference only. There may be other defects. - Grip Controller for Nintendo Switch HORI - JOY-CON Left Gray x2