This is a remote key for a YKKAP entrance door. I have two of these, and I'm offering one for sale as I don't plan to use it. I opened the package to take photos, but it's unused and appears to be in perfect condition. Please check the photos. This is for entrance doors from 2021 onwards. It sells for the equivalent of 28,500 yen on the YKKAP parts online shop. Regarding the battery, I have confirmed that it works, but I recommend replacing the battery before use. I will send the item shown in the photos. The physical key cannot be used, so please use it as a dummy or use the key from your existing tag key.