mathi8vadhanan
1000+ Head-Fier
Not a lot of headphones have 2.5mm connectors so actually taking advantage of the TRRS may be a challenge, certainly for portable headphones. That is a bummer. Haven't found a single headphone yet that features 2.5mm TRRS stock.
All siren series universals from JH (Angie/Roxanne/Layla), come with 2.5mm TRRS cable included.