Like Shure replacing the SM58 what can Sennheiser improve about the HD25?

The main selling point is the different lead options with a 1.5 and 2.0m straight cable and a 3.0m curly cable.

NB: Stop the press these come with your very own HD25 MkII Bag!

General Description
The closed-back HD 25-1 IIs are purpose-designed, professional monitoring headphones offering high attenuation of background noise. Capable of handling very high sound pressure levels and of extremely robust construction, these headphones perform exceptionally well in high-noise environments, e.g. ENG, sound reinforcement, studio monitoring and audio equipment testing. The capsule is rotatable for one-ear listening. Ideal monitoring headphones for cameramen and DJs.
Features
	Very lightweight and comfortable, even if used for long periods
	High maximum sound pressure level
	65 .nominal impedance for universal compatibility
	Tough, detachable steel cable
	Neodymium ferrous magnet systems and lightweight aluminium/copper voice
Delivery Includes
	1 HD 25-1 II
	1 Bag
	Soft ear pads (1 pair)
	1 adaptor to ¼” (6.3 mm) stereo jack plug