This work of art impresses not only in its appearance but also in its sound. The special ~ 0.001 mm thick NsD (NEO supernano Diaphragm) membrane can ensure extremely fast and precise sound reproduction between 6Hz and 75000Hz. Beyond the human hearing range and beyond all quality expectations. This carefully assembled, removable cable, stylishly matte black planar magnetic headphone is not only comfortable, but just the right weight to experience an extremely detailed and lifelike music experience anywhere. SUNDARA in Sanskrit means "beautiful."