If you have already installed a cracked “Letasoft Sound Booster product key 22” from an untrusted source:

Unlike browser extensions, it boosts audio for every application, including media players, games, and communication tools like Skype or Zoom.

You can purchase a legitimate product key directly from the official Letasoft website . The key is emailed to you immediately after purchase and is used to activate the software and link it to your hardware.