The Pro Bundle contains invaluable tools for mixing and mastering: professional EQ, reverb, limiter, multiband dynamics, compressor, de-esser and gate/expander plug-ins. Plug-ins in this bundle: PRO-R, PRO-L 2, PRO-MB, PRO-Q 3, PRO-C 2, PRO-DS and PRO-G.DOWNLOADhttp://www.fabfilter.com/activate/