The HME K27111, commonly associated with the HS-14 model, is a professional single-ear communication headset engineered for clear and reliable two-way audio in high-noise environments. It is designed as a primary interface for professional two-wire party-line intercom systems, such as those manufactured by HME, RTS, and Clear-Com, making it a standard tool in broadcast studios, live event production, theater, and corporate A/V. The headset features a dynamic, noise-canceling microphone that is highly directional, effectively capturing the user's speech while minimizing background ambient noise from stage monitors, machinery, or crowd sounds. Its single-ear, over-the-ear design is a critical functional aspect, allowing the wearer to maintain one ear open to monitor the live program audio, ambient cues, or conversations in the room, which is essential for directors, stage managers, and camera operators.

Constructed for all-day comfort during lengthy productions, the HS-14 incorporates a lightweight, adjustable stainless steel headband and a fully rotatable earcup that can be worn on either the left or right ear. The earcup is padded with foam and covered in a soft, replaceable leatherette material, providing a comfortable acoustic seal without causing fatigue. A key operational feature is the integrated "Push-To-Listen" (PTL) button mounted on the earcup housing, allowing the user to momentarily activate the listen function of their connected beltpack without using their hands. This hands-free operation is vital for crew members who need to keep their hands on cameras, lighting consoles, or other critical equipment while staying connected to the intercom channel.

The headset is built to withstand the physical demands of daily production use. It terminates in a standard 4-pin XLR connector, typically a male TA4F type, which interfaces directly with compatible intercom beltpacks and wall panels. The coiled cord offers excellent durability, flexibility, and resistance to tangling, extending to provide ample reach while retracting neatly. Renowned for its straightforward functionality, durability, and focus on essential communication clarity, the HME HS-14 (K27111) is a ubiquitous and trusted component in the professional intercom ecosystem, providing a robust and dependable audio link crucial for coordinated, real-time production operations.