If you tell me which you have, I can confirm if you need a license key or if it's a hardware unlock device .
Rekordbox 5 License Key: Everything You Need to Know Rekordbox 5 remains a highly sought-after software version for many DJs. It is stable, familiar, and works perfectly with older Pioneer DJ hardware. However, finding and activating a Rekordbox 5 license key has become incredibly difficult since AlphaTheta (formerly Pioneer DJ) shifted its business model. rekordbox 5 license key