Flex Omnidirectional Headset and Earset Microphone

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    Product ID
      MSRP excl. local VAT

      Legendary sound - flexible headset


      • Pristine audio quality
      • Lightweight and flexible
      • Easy mounting to the left or right
      • Minimal visual impact
      • Resistant to humidity
      • Flexible adapter system fits most professional wireless systems
      The 4266 Omnidirectional Headset Microphone combines the legendary sound of the 4066 Omnidirectional Capsule with a lightweight and flexible headset system. This condenser headset mic is easy and fast to adjust and it offers clean and transparent sound quality with lots of headroom. The capsule itself is the same type as the 4066, but is attached to an interchangeable boom arm.


      Like all of the microphones in the range, the 4266 Omnidirectional Headset Microphone offers accurate, natural voice intelligibility and very high SPL capabilities. Users can both speak and sing into the mic with no hint of distortion.

      This microphone is available as an earset or headset. Earset variants are the quickest to put on and often the best choice when miking needs to be fast and easy for example for conference use. Headset variants sit more securely around the head and are ideal for active performance situations where the person wearing the headset won’t feel the presence of the microphone. Both types are ergonomically designed to fit comfortably and easily. This mic adjusts to fit any ear size and head shape while at the same time it mounts securely and is hardly visible. By rotating the boom and the earhook, the microphone can be easily used on either the left or the right ear. The connector splits the cable from the microphone boom allowing you to swap broken cables and / or wireless connectors quickly.

      Three boom lengths are available to accommodate different applications and head sizes: 40 mm (1.6 in), 90 mm (3.5 in) and 110 mm (4.3 in). The 110 mm (4.3 in) is the standard choice for most users.

      IP58 certified

      All CORE by DPA technology microphones are IP58 certified. This durability is achieved through a number of defense mechanisms:
      •    Water-repellant nano-coating of the cover and housing
      •    Hermetic sealing of the sensitive amplifier at the core of the mic
      •    Dual gold plating of the diaphragm

      Read more about the durability of all our CORE by DPA technology microphones.

      A bit about omnis

      An omnidirectional microphone has sensitivity at all angles – in principle picking up sound equally from all directions. This gives you extremely natural and realistic sound compared to a cardioid mic. Omni mics are often used for picking up ambient sounds, as well as miking a large sound source such as a choir in a recording situation. Unfortunately, due to their pickup pattern, omnis can also produce a lot of feedback in live situations.

      Nonetheless, we recommend that you try a DPA omni first because, when used close to the sound source, the equal frequency response makes these mics a flexible addition in your audio toolbox. It will often give a more natural sound, it can handle extremely high sound pressure levels, it does not suffer from proximity effect and is not as sensitive to wind, pop or handling noise.


      Adapter system gives you flexibility

      The adapters for wireless systems give you flexible, simple and affordable possibilities. You are no longer bound to one wireless system. As circumstances change, you can just switch your adapter, instead of incurring the cost of a completely new microphone. When you make the switch, you won't hear any loss or change in sound quality.

      DPAs miniature microphones work with all leading wireless mic solutions, such as Lectrosonics, Sennheiser, Shure, Sony, Wisycom, Zaxcom and many more. DPA Microphones’ ingenious adapter system is one of a kind in the industry. It protects your investment in fantastic sound for years to come.

      Find the adapter that fits your wireless system.

      Explore specs

      The slim and round capsules have the same specs. But choose CORE by DPA and you increase the dynamic range from 97 dB to 111 dB.
      Explore specs
      In operation, both the omni and directional headsets sound natural even before any equalization, and deliver impressive level without feedback, even when the user is positioned relatively close to a loudspeaker cluster.
      Read the full review on Church Production
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      Where do I buy?

      Are you ready to buy a 4166 or 4266 Flex Headset or Earset? Find the store closest to you.
      Locate store

      Alternative microphones


      6066 Headset Subminiature Mic

      A 3 mm (0.12 in) capsule mounted on our most unique and flexible headset. This solution combines the need for exceptional audio with a secure, comfortable all-day professional headset solution. This is an ideal solution for theatre, broadcast and conference / event use.

      Read more and configure your mic

      4066 Omni Headset Mic

      The 4066 Omni Headset Mic offers clean and transparent sound quality with lots of headroom. For years, it has been the chosen headset for broadcasters as well as theaters on Broadway and London's West End.

      Read more and configure your mic

      4088 Directional Headset Mic

      This classic headset mic is the industry standard in professional headset mics. It offers an open and natural sound making it ideal for both spoken word and vocal performance applications.

      Read more and configure your mic

      4188 and 4288 Series Directional Headset Mic

      Combining the legendary sound of the 4088 Directional Capsule with a lightweight and flexible headset system, these ear- and headset mics are ideal for both spoken word and vocal performance applications.

      Read more and configure your mic

      Optional accessories


      Universal Miniature Fur Windscreen

      AIR1 is a unique windscreen for lavalier and headset mics with a patent-pending design that guarantees fast mounting, highly efficient and consistent wind protection, and unrivaled acoustic transparency. AIR1 fits on any round omnidirectional miniature mics between Ø2.5-5.8 mm (0.1-0.23 in).

      Read more

      Headset Clip and Strain Relief for Headset Microphone

      Cable and strain relief for use with a headset microphone. Clips onto  a user's clothing to reduce strain on the cable that runs down the back to the transmiter.

      Read more
      ...best of all, even microphone-apprehensive users were captured consistently and clear; hand a microphone to the same group of users, or stand them in front of a spot or a podium, and I guarantee the results won’t be that consistent or nearly as usable.
      Read the full review on ProSound News

      Volksoper Vienna insists in DPA for every production

      This internationally acclaimed theatre has more than 200 DPA microphones at its disposal to ensure that every performances is clearly heard and thoroughly enjoyed.
      Read more
      I was quite simply blown away by the fact that this microphone, with no processing of any kind, represented my voice as naturally as any large-diaphragm condenser or high-end ribbon mic I’d ever heard.
      Read the full review on Sound and Video Contractor

      How to mic speech on stage with headworn mics

      When a singer performs on stage with a microphone, he typically has to contend with sounds radiating from musical instruments, monitor speakers and other sources.
      Learn more


      Product IDs

      Identify your microphone

      Identify your product by viewing the attached label. The label has a color, which defines the color code and the prefix defines the serial number.

      Flex Omnidirectional Headset and Earset Microphone

      4166 CORE Slim Omni Flex Headset Mic, Loud SPL
      Serial number prefix: C
      Label color: Engraved plug cap

      4266 CORE Omni Flex Headset Mic, Loud SPL
      Serial number prefix: PA
      Label color: Engraved plug cap