I found this in a drawer in a shelf at home. I believe it's the remote control for a Kenwood portable MD player, model DMC-K3, which I used to own. I no longer have the player itself, so I haven't been able to confirm if it works. The exterior has multiple small scratches. This item has been stored in a drawer for many years and its functionality is unconfirmed. Therefore, I cannot offer any warranty after purchase. Please understand this before purchasing.