This is a remote key for YKKAP entrance doors. I am selling it because I have no plans to use it. This is a dedicated remote key for the Smart Control Key (front of the lower key case stamped: EC-Y7) released on October 25, 2021, and can be used to add remote keys. Please note that it cannot be used with older entrance door products. The emergency storage key is not included. It is sold for the equivalent of 28,500 yen on the YKKAP parts online shop. Regarding the battery, I have confirmed that it works. If the battery runs out, please replace it yourself. You can purchase it at electronics retailers. #YKKAP #SmartControlKey #ElectricLock #RemoteControl #PocketKey #YKKap #PitattoKey #EntranceDoorKey #Venato #DuplicateKey #Key #Key #Key #key #SmartKey #SpareKey