Over 100+ sliders including standard "A-I-U-E-O" lip-sync, but also "vowel-blending" for smoother singing animations. R18 Specific Morphs:

: Many third-party sites re-upload models without permission. These are often filled with malware and go against creator terms (which may lead to a creator deleting their original work). Use a Translation Tool

It sounds like you may be referring to models — 3D character models used for animation — with tags indicating: