The SMB-02G is the successor of PHONON's acclaimed SMB-02 headphones. With a diaphragm made of Nomex, a material used in high-end speakers, the new SMB-02G delivers even more exquisite sound quality. PHONON's unique technology creates a natural, ultra-low frequency range and acoustic space. The free-edge structure of the diaphragm, with its high response and low energy loss, provides a frequency response and wide dynamic range that fully covers even high-resolution bandwidth. Our tuning technology, meticulously cultivated, achieves exceptional acoustic balance regardless of genre. The SMB-02G comes with a detachable cable. A semi-open plate (sold separately) is also available for listeners who want to enjoy both closed dynamic and semi-open modes with a single unit.