I've been looking for something like that, too. I tried to attach a belt clip off an old shure wireless kit to my SBM1 with no success. I have taped 2 AT8531 power supplies {which have great belt clips} to my SBM-1 so that the AT's were vertical and the SBM-1 horizontal with the volume knob on top and had that whole thing clipped on my pants - that actually is a workable semi-clunky configuration.