Not a fan of the cables that come with the NA1 or NA2. They fall in the category of it is usable but your so gonna want to change these. They are that qdc 2 pin type by the way so whatever aftermarket 2 pin set you put on them works but will stick out more than you would like.
Vs
The ISN S4 mmcx cable that comes with the D10 by itself cost almost $60. Actually almost double the value of the cable that comes with the H40 by the way. These are the only cables that ISN makes that do have ear guides but it is the softest ear guides in existence. Not stiff like the previous cable on the NA1.
And as an added bonus you can choose what termination you want when you order. Which you can't do for the NA1 or NA2. Balanced for the win.