Pioneer Rekordbox DDJ RB Licence Key

Hello all,

a few years ago I bought DDJ RB Pioneer, there was a licence key in the package which I activated in my mac book. 

Now I wanna sell my DDJ RB, is it possible that the person can use also the licence key?

I didnt use anymore rekordbox. What should I do, so that the buyer can use the rekordbox without any problems.

Thanks in advance for your help.

BR

Banu