NAD VISO HP30 On-Ear HeadphonesNAD VISO is the culmination of more than 45 years of dedicated audio innovation. Designed and driven by audiophiles, VISO is made specifically for digital natives who understand the difference that clean, crisp sound makes to music lovers.Our sound scientists created RoomFeel™ to translate the warm, open sound of live performance directly into your private headphone experience. The result is a headphone innovation that dramatically expands the whole soundstage. You have to hear it to know what you’ve been missing.