I own these, and agree with your observations. However, Sennheiser not including a second, shorter cable is inexcusable and cheap.

@Skycyclepilot I totally agree with you. It's weird since other HD 500 line headphones have 2 cables, a 3 meter 2.5 to 6.3 mm cable and a 1 meter 2.5 mm to 3.5 cable that is amazing for daily use with phones, dongles and DAPs. HD 599 SE is cheapers and has 2 cables