Guitar tabs: what does vvvv and h2 mean?

Question: Guitar tabs: what does vvvv and h2 mean!?

i saw it on some tabs next to the fret number and idk what they mean Www@QuestionHome@Com

Best Answer - Chosen by Asker:

V are whammy/ vibrato dives and h 2 is hammer on to the 2Www@QuestionHome@Com