CX 890i

Sleek, domed design and incredibly lifelike sound make this headset a perfect match for your smartphone. It features adapters to personalize the fit and incredible external noise suppression. Carrying case included.
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Established Sennheiser technology, innovative materials, revolutionary design is what defines the look and sound of the CX 890i. The innovative use of the sapphire-like dome casing and metal enables an entirely distinctive design and style. This in turn creates a smooth surface that further emphasizes the modern, minimalistic looks of this headset.

With due credit given to the high-performance dynamic speaker systems, the CX 890i offers high-fidelity, detailed and lifelike Sennheiser sound. Combined with the globally successful in-ear system, optimum fit and listening comfort is ensured. In addition, outstanding passive noise attenuation guarantees undisturbed listening while the integrated smart remote and microphone ensures easy management of tracks and calls.


  • Signature Sennheiser sound – high-fidelity lifelike sound

  • Ease of use – premium ear canal headset with smart remote and microphone

  • Highly-aesthetic design – distinctive sapphire-like dome casing

  • Premium comfort – ear adaptors in different sizes for excellent ear canal fit and high passive noise attenuation

  • Convenience at its best – carry case for hassle-free portability

  • 2 year warranty

What's in the box?

  • CX 890i headset
  • Ear adaptor set (S/M/L)
  • Carry case

Technical Data

  • Color
  • Impedance
    32 Ω
  • Frequency response
    Headphones: 17 - 23000 Hz
  • Frequency response
    Microphone: 100 - 10000 Hz
  • Sound pressure level (SPL)
    115 dB
  • THD, total harmonic distortion
    < 0.5 %
  • Jack plug
    3.5 mm angled
  • Cable length
    1.2 m symmetrical cable
  • Pick-up pattern
  • Sensitivity as per 121 TR 9-5
    - 44 dB V/Pa


  • Foam Ear Adapters

    A good source for foam ear adapters for the majority of Sennheiser ear bud models is a company called Comply Foam (

    CX 890i (White) ( #505414 ), CX 890i ( #505418 )


  • EU Declaration of Conformity
    • EC Declaration of Conformity (500 KB) Download

  • Fact Sheets