Genuine smart key. Up to four can be registered to one vehicle at a Nissan dealership. I purchased several on Mercari to add to my X-Trail T31. I took keys that look similar to the genuine intelligent key to a Nissan dealership and was able to register four. I have two left, so I'm listing them. Please refer to the photos. Please purchase only if you understand that these are used keys. Compatible car manufacturer...Nissan Type of parts...Other