If the features you want are part of a paid upgrade or a professional version, you might need to purchase a license. This is a common practice for accessing advanced features in software or hardware.
During the trial, test:
First‑time impression: The transition feels seamless; there’s no need to reinstall the OS or plug in external dongles. The UI adapts to show additional tabs, but the core navigation remains unchanged, which reduces the learning curve for staff already familiar with the consumer mode. siglos karaoke professional unlock code