DPA Microphones 4166-OP-F-C34-LE 4166 CORE+ Slim Omni Flex Earset Mic (Brown)

Compact Earset Microphone Designed for High-Performance Speech Applications

The DPA 4166 CORE+ earset microphone provides a professional audio solution for presenters, performers, and broadcasters who need pristine voice capture in a discreet and secure design. This slim single-ear model uses a 110mm boom to place the microphone near the mouth, delivering clear and natural vocal pickup. It’s ideal for conference presentations, live performances, video shoots, or worship settings where visual appearance and freedom of movement matter.

Fits Securely and Adjusts Easily for All-Day Wear

Built with comfort in mind, the 4166 features a lightweight frame that conforms to any ear size and head shape. The boom and earhook can be rotated for left or right-side wear, while the flexible arm ensures optimal mic placement. Its unobtrusive brown finish helps it blend into skin tones for minimal visibility on camera or stage. Once in place, the earset stays secure even during active movement, making it an ideal choice for dynamic environments.

Optimized for Sennheiser Transmitters Using 3.5mm Locking Connectors

This version comes pre-configured with a locking 3.5mm mini-jack adapter compatible with wireless systems from Sennheiser, including Evolution (ew), XSW-D, and SpeechLine (SL) series transmitters. The modular MicroLock connector system supports interchangeable adapters, giving users the option to repurpose the mic across different bodypack systems without replacing the entire unit—helping reduce long-term gear expenses.

MicroLock Connector Ensures Secure and Reliable Cable Connections

The MicroLock system is built to withstand repeated use in busy professional settings. Its locking design ensures the connector won’t accidentally come loose, which is critical in live production or on-air applications. Despite its secure hold, it’s easy to detach when needed. The MicroLock design is also backwards compatible with DPA’s MicroDot connectors, giving users added flexibility if they already use DPA gear with MicroDot-equipped systems.

CORE+ Technology Produces Cleaner Audio with Lower Distortion

DPA’s CORE+ amplifier tech ensures this microphone delivers ultra-clean sound across a wide dynamic range. The 5.4mm capsule supports up to 134 dB SPL RMS and 137 dB peak before reaching 1% distortion, with headroom to tolerate up to 144 dB SPL at 10% distortion. Whether used in a quiet speaking engagement or a loud live venue, it maintains clarity, detail, and articulation that outperform many similarly sized headset microphones.

Omnidirectional Capsule and Built-In High-Frequency Boost Enhance Vocal Clarity

The omnidirectional design captures consistent audio regardless of head movement, which is especially helpful for dynamic speakers or performers. It maintains a flat frequency response across a broad range and features a built-in 3 dB boost between 8 and 15 kHz to enhance vocal presence and intelligibility. This boost gives voices the crispness needed to stand out in dense mixes or ambient environments without the need for extra EQ processing.

Built to Withstand Moisture, Sweat, and Frequent Handling

The 4166 is IP58-rated for dust and moisture protection, thanks to its dual-vent protection system. The 4.3-foot cable includes Kevlar-reinforced strain relief for superior durability. These rugged components make it suitable for environments where perspiration, outdoor elements, or cable stress might otherwise damage more fragile microphones. Whether on stage, at a pulpit, or in front of a camera, this headset can take the daily grind without compromising performance.