This is a used item. It comes with a chip, so registration is possible if your apartment supports it. There are also Rakusee keys that start with TLRS, so please confirm the model number carefully before purchasing to see if registration is possible. This one is TLRS2. Also, please understand how to register before purchasing. You will need to request registration from the locksmith specified by your apartment. In that case, you only need to pay the on-site registration fee if you purchase this. Since this is a tag, it can be used in conjunction with a PR-type key. It can also be used independently. Please understand that the battery needs to be replaced. Please check the manufacturer's website for details: https://www.rrrmaji.com/product/13781