I have the QC20 and hate the dongle at the end of the cord, so really interested in the QC30. It seems as though it doesn't have a corded option (only on the QC35). Doesnt bode well for the times i want to use IFE. Plus i have gotten really used to the size of the QC20 carrying case. The QC30 looks a lot larger and bulkier to carry.