Superlux HDB581 Headphone Audio Monitoring. The HDB581 has a 39mm driver with a wide and balanced frequency response that creates a fantastic sound field. The HDB581 has updated earpad material and a better-fitting headband, which make it exceptionally comfortable to use. The HDB581 is ideal for personal enjoyment, business monitoring, and other situations due to its great durability and comfort.
• Equipped with tailored Ø39mm headphone driver for high definition and full-range frequency response in every using environment.
• Premium earpad material for high durability and comfort.
• Unique structure design to achieve ultimate comfort even when long-time wearing.