I am selling this remote control because I replaced the Washlet unit and no longer need it. The main unit was disposed of as bulky waste, so this remote control was left attached to the wall. Unfortunately, I haven't confirmed its operation in conjunction with the main unit, but I have inserted batteries into this remote terminal and confirmed that the various buttons function. This is a used item. Returns and exchanges are not accepted. Please refrain from purchasing if you are overly concerned about the condition. Please understand that in the unlikely event of a malfunction, repair, or parts replacement, the buyer will be responsible for the costs.