Hydrowave KVD Expansion Module, Black Hydrowave kvd expansion module accessory for the Hydrowave H2 or classic marine audio device Kevin vandam personally lays out His most productive loops on His kvd signature sounds expansion module Microwave kvd expansion module features six exclusive sound loops that vandam has found to be most effective on bodies of water across the country Included sounds: power pattern, schooling blitz, feeding frenzy, Ultra finesse, delayed schools, finesse Plug & Play The same 6 Sounds used by KVD Water Proof Construction LRT & VRT Technology Easy to Install