DPA Microphones 4266-OP-F-C34-LE 4266 CORE+ Omni Flex Earset Mic (Brown)

Single-Ear Headset Microphone for Professional Stage and Speech Applications

The DPA 4266 CORE+ Omnidirectional Flex Earset Microphone with a 110mm boom and locking 3.5mm mini-jack is a premium single-ear solution for presenters, broadcasters, and performers who need dependable, high-quality audio in a discreet, comfortable format. It combines DPA’s proven 4066 capsule with their advanced CORE+ amplifier for clean, distortion-free sound across a wide dynamic range. Designed for use with Sennheiser wireless transmitters, this headset delivers precision performance in live production, corporate events, and theater environments where clear speech and low visibility are key.

Comfortable and Adjustable Fit for Long-Term Wear

The earset features a flexible, ergonomically designed frame that conforms comfortably to any ear shape or size. Its single-ear design allows quick placement and removal, while the boom arm’s 110mm length provides optimal positioning for consistent voice pickup. The mic can be rotated for use on either the left or right ear, and its slim brown profile blends well with skin tones for a clean on-camera look. Whether you’re presenting on stage or moving across a film set, the 4266 stays put without needing constant adjustment.

CORE+ Amplifier Delivers Transparent Audio with High SPL Handling

The built-in CORE+ amplifier significantly reduces distortion, providing a more open sound across all vocal ranges. With support for up to 134 dB SPL RMS and 137 dB SPL peak before 1% distortion—and a maximum of 144 dB SPL with only 10% distortion—this microphone handles high-volume scenarios without clipping or audio artifacts. Ideal for public speakers, instructors, and performers alike, it ensures that speech remains clear and intelligible at every level.

Omnidirectional Pickup Pattern Captures Consistent, Balanced Sound

The omnidirectional capsule delivers reliable audio quality from all angles, making it forgiving of head movement and positioning changes. This ensures your voice maintains tonal consistency and volume even if you turn your head or shift during performance. It also helps reduce handling noise and plosives, resulting in smooth, natural-sounding speech that’s perfect for broadcast, conferencing, and educational environments.

Compatible with Sennheiser Transmitters Using Locking 3.5mm Connections

This version comes equipped with a locking 3.5mm mini-jack, compatible with a wide range of Sennheiser transmitters including the Evolution Wireless (ew), XSW-D, and SpeechLine (SL) series. The modular MicroLock connector allows for easy cable replacements or transmitter swaps by simply changing adapters. This flexibility makes it a smart investment for professionals managing multiple setups across productions or venues.

Includes High-Frequency Boost Grids for Vocal Customization

Two interchangeable stainless steel grids are included to adjust high-frequency response. The Soft-Boost grid adds a gentle 3 dB lift from 8 to 20 kHz for subtle vocal presence, while the High-Boost grid provides a 10 dB increase around 12 kHz for brighter, more articulate speech. These tone-shaping accessories make it easy to adapt your sound to suit different vocal timbres or acoustic environments, enhancing intelligibility and clarity when needed.

Durable, Moisture-Resistant Design for Demanding Environments

Built for the real world, the 4266 boasts an IP58 rating for moisture and dust resistance. Its dual-vent protection system keeps out debris and sweat, while the rugged 4.1-foot Kevlar-reinforced cable resists twisting, pulling, and tangling during active use. Whether on tour, on set, or in corporate environments, this headset is designed to perform reliably under pressure without compromising on sound quality or comfort.