NeilPeart
Headphoneus Supremus
My iRiver SlimX iMP-550 included the Sennheiser MX 400-RC, which is explained on Sennheiser's website as an MX 400 with a shorter cable for the remote control of the iRivers. I find that the $2 RS foamies really enhance the fit of the MX 400s, which also improves the sound.