The EXT-QSFQS cable is a 1/8" Female TRS to 1/8" Male TRS Stereo Extension Cable.
These cables are constructed with EWI model MSM-2650 cable, which is a 26ga. twisted pair spiral shield cable and assembled with EWI cord ends in four different combinations. The 3.5mm (1/8") TRS male end has been designed to fit into most device output jacks even if a protective case is installed.