The HydroWave KVD H2 is a Marine Audio Device based on the reactive senses of a Bass and other predatory fish. KVD has seen a lot in bass fishing and believes he's s seen a lot of things many anglers never. Kevin VanDam runs his Hydrowave at all times when bass fishing. Jeff Kriet shares how he uses his Hydrowave when searching for bass to get them to expose. Hydrowave kvd expansion module accessory for the Hydrowave H2 or classic marine audio device; Kevin vandam personally lays out His most productive loops.