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

Professional Dual-Ear Headset Mic for Demanding Live Applications

The DPA 4166-OP-F-C34-LH is a brown, dual-ear headset microphone built for clear, consistent voice pickup in high-performance environments. Whether used for stage presentations, broadcast settings, live TV, or corporate events, this model blends the renowned 4066 capsule with DPA’s CORE+ preamp to deliver pristine sound. Its locking 3.5mm mini-jack is fully compatible with Sennheiser wireless systems, giving users a reliable and low-profile hands-free option for capturing speech in any venue.

Secure Fit and Comfortable Design for Long Sessions

This dual-ear version is engineered to provide a stable and comfortable fit that conforms to various head shapes. The adjustable earhooks ensure it stays in place without causing fatigue, making it suitable for extended use. The 110mm boom arm positions the microphone at the perfect distance for optimal voice capture while keeping it out of the way on camera. The brown finish blends in for a barely noticeable appearance, helping speakers or performers maintain focus and presence without visual distraction.

Compatible with Sennheiser Wireless Systems Using Locking 3.5mm Connectors

Outfitted with a MicroLock adapter terminated in a locking 3.5mm jack, this headset mic works seamlessly with Sennheiser wireless packs such as the Evolution (ew), XSW-D, and SpeechLine (SL) series. The modular system allows quick swapping of cables or connectors, meaning users can adapt the mic for other transmitters without replacing the entire unit. This flexibility makes it a cost-effective choice for audio professionals who work across different wireless platforms.

Built to Withstand the Rigors of Daily Production

The DPA 4166 is designed to hold up under pressure. Its MicroLock connector resists accidental disconnection and is compatible with MicroDot systems. The IP58-rated housing protects against moisture and dust, while the Kevlar-reinforced cable withstands tugs, pulls, and constant motion. Whether used indoors under studio lights or in unpredictable environments, the headset continues to perform with consistent reliability.

Enhanced Vocal Presence with CORE+ Technology

The CORE+ amplifier technology provides a significant upgrade in dynamic range and sonic detail. With support for levels up to 137 dB SPL peak and minimal distortion, this headset mic can handle a range of vocal intensities—from conversational speech to impassioned stage dialogue. The built-in 3 dB soft boost in the 8 to 15 kHz range helps the voice cut through background noise and adds clarity without the need for excessive EQ.

Omnidirectional Pickup Pattern Ensures Even, Clear Audio

The omnidirectional design ensures the mic captures audio evenly, regardless of head movement or off-axis positioning. This helps maintain consistent sound levels even as the speaker moves naturally. It also helps reduce issues such as plosives or mic handling noise, ensuring the listener receives crisp, intelligible audio at all times.

Discreet Appearance and Lightweight Feel for On-Camera Use

With its thin profile, dual-ear frame, and flexible boom arm, the 4166 remains unobtrusive and nearly invisible to the audience. Presenters, speakers, and on-air talent can move freely without drawing attention to the microphone. Its featherlight build also means users can wear it for hours without discomfort, making it ideal for high-pressure, multi-hour productions or events.