Hi Technicsplayer, and GJ

which is described correctly.
There were two versions. KN 3000 with retractable HD on the back of keys and a built-in HD KN 35000

Unfortunately, the company has discontinued the production KeySoft because Technics has also stopped production.
These programs are only used on eBay or buying a Technics Keys, where was this particular HD installed.

Information zum KN 7000
http://www.keysoftservice.ch/kn7000/index-e.htm
These programs are only used on eBay or buying a Technics Keys, where was this particular HD installed.