KOSS UR40 Over-ear Headphones, Black/Silver

The KOSS UR40 is a wired, over-ear headphone featuring a hybrid acoustic design. It integrates screened, open-back ear cups for a wider soundstage with closed-style leatherette cushions intended to enhance bass response. This construction provides the spatial sound of an open design while retaining low-end frequencies. Audio is delivered by drivers with titanium diaphragms and neodymium magnets, operating across a frequency range of 15 Hz to 22,000 Hz. With an impedance of 60 ohms, these headphones are compatible with most standard audio equipment.

Engineered for portability and comfort, the UR40 has a lightweight construction at 170 grams. The frame is foldable, collapsing into a compact form for transport or storage. The over-ear fit is achieved with soft leatherette cushions designed for passive noise isolation and long-term wear. A detachable 1.2-meter cable with a standard 3.5 mm connector offers convenient replacement and helps prevent tangling. The UR40 is a passive headphone, focusing on audio playback without built-in electronic features like a microphone or active noise cancellation.

• Over-ear fit with a headband style
• Hybrid open-back acoustic design
• Wired connection via a 3.5 mm plug
• Detachable 1.2 m audio cable
• 15 Hz to 22,000 Hz frequency response
• Rated sensitivity of 98 dB
• Foldable construction for portability