Ferrum OOR Amplifier + Hypsos Single-Output Power System BUNDLE (Open Box) xlr-4 female And it also comes with

And it also comes with PCC coaxial single crystal copper earphone cable

with impactful bass and outstanding vocal projection

this headphone gives you a better experience

Easy-to-carry

It is the first time to use two different materials for the stock earphone cable

Ferrum OOR Amplifier + Hypsos Single-Output Power System BUNDLE (Open Box) xlr-4 female And it also comes withOOR, the only headphone amplifier with a soul OOR fully Balanced analogue headphone amplifier Proprietary discrete power amp technology Proprietary 4 pin Ferrum connector for HYPSOS Balanced 4 pin XLR and unbalanced RCA headphone outputs OOR will redefine the category of headphone amplifiers. OOR will drive any headphones effortlessly to the max of their potential, while preserving the essence of the music it amplifies. Ultra low distortion, zero