Zoom R4 MultiTrakIntroducing the Zoom R4 MultiTrak The R4 is designed to empower musicians to explore big ideas and is the worlds first portable multi trak compact studio supported by 32 bit float audio technology. With a high quality built in microphone, a rhythm section with 80 different drum beats, controls to add impressive effects, there are many possibilities with the R4. Light and compact, as well as being run on 4 AA batteries, the R4 is perfectly portable and