Digital Concepts HS-10 Compact Semi-hard Deluxe Carrying Case
This Digital Concepts HS-10 case, is a very compact, sturdy, lightweight case.  Read about this case on a review page for the Sangean DT400W.  I own the radio,  and bought the case.  The radio fits in perfect, even with the belt clip  attached.  Couldn't fit any better.  So if you are looking for a case to fit  the Sangean DT400W, this is it.