Koss UR23i Headset, Black

The Koss UR23i is a full-size, wired headset with a closed-back, circumaural design. The earcups fully enclose the ears to provide passive sound isolation from ambient noise. This model features a D-Profile earcup shape, which is contoured to match the natural form of the ear for a more ergonomic fit during extended use. It operates within a frequency response range of 20-20,000 Hz and has an impedance of 34 ohms, specifications suitable for use with portable audio players, laptops, and smartphones.

Connectivity is established via a fixed 1.2-meter cable that terminates in a standard 3.5 mm plug for broad device compatibility. An in-line, one-touch microphone is integrated into the cable, providing a simple interface for answering calls and managing music playback. The headset's lightweight construction is intended to support comfort and portability during daily commutes or travel. This model focuses on core audio and communication functions in a straightforward, non-wireless format.

• Circumaural, over-ear fit with D-Profile earcups
• Wired connection via a 1.2 m cable with a 3.5 mm plug
• Frequency response of 20-20,000 Hz
• Headphone sensitivity rated at 94 dB
• Closed-back acoustic system for passive noise isolation
• In-line microphone for hands-free calls
• Single-button remote for call and music control
• Lightweight construction for portability