Does anyone else have this yet?? I'm trying to do a review on it . Received mine but I seem to be missing a cord and so far wolfiek group has not been helpful. With 110v outlets here in the US it seems the power transformer should be used to step up to 220. But no cord comes that connects into the compressors ac port ? Also curious on where to get a battery to power this unit cordless? Any help would be much appreciated