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Solid Bass® In-ear Headphones with In-line Mic & Control

U.S. Two-Year Limited End-User Warranty

*Manufacturer's Suggested Retail Price. Actual selling price may vary; please check with an authorized Audio-Technica dealer.

  • In-ear headphones with Bass
  • Headphones with Microphone
  • Headphones with mic
  • in-ear headphones for smartphones

  • Overview
  • Features
  • Specifications
  • Reviews
  • Q & A

  • Overview

    The ATH-CKS55XiS brings the Solid Bass experience to smartphone users. Featuring an in-line mic and controls, the ATH-CKS55XiS lets you answer calls, adjust volume and handle playback (play, pause, fast-forward and rewind) of music and video on smartphones and other portable devices.

    The ATH-CKS55XiS features Audio-Technica's direct-diaphragm driver design that mounts the diaphragm assembly directly onto the edge of the enclosure for increased fidelity and dynamic impact. The headphones also incorporate Audio-Technica’s Solid Bass technology, which utilizes an exclusive Double Air Chamber System. In addition to the main air chamber that houses the driver, the earpieces have an additional chamber that operates in conjunction with a specially shaped housing to control and focus the airflow produced by the driver movement and expand its bass output. The result is expansive, rich bass that doesn’t sacrifice mids and highs.

    The eartips of the ATH-CKS55XiS are designed for maximum bass response, as well, with a movable two-position post that lets you adjust the eartips for the best fit, sound isolation and low-frequency performance. Plus, with four sizes (XS, S, M, L) of interchangeable silicone eartips, you’re sure to get the best fit for your ears.

    Available in black (ATH-CKS55XiSBK) and white (ATH-CKX55XiSWH).
  • Features

    • Double Air Chamber System expands bass output for powerful bass without sacrificing audio clarity

    • 12.5 mm direct diaphragm drivers

    • In-line control with mic for answering/ending calls, controlling music & video playback, and controlling volume on smartphones and other portable devices

    • Two-position post maximizes sound isolation while providing a better fit

    • Includes eartips (XS/S/M/L) and pouch

    • Available in black (ATH-CKS55XiSBK) and white (ATH-CKX55XiSWH)

  • Specifications

    Driver Diameter12.5 mm
    Frequency Response5 - 24,000 Hz
    Maximum Input Power100 mW
    Sensitivity105 dB/mW
    Impedance18 ohms
    Weight6 g
    Cable1.2 m, Y-type
    Connector3.5 mm (1/8") gold-plated mini-stereo, L-type
    Accessories IncludedPouch, ear tips (XS/S/M/L)
    Type (Microphone)Condenser
    Sensitivity (Microphone)-44 dB (0dB=1V/Pa, 1kHz)
    Frequency Response (Microphone)100 - 10,000 Hz
    Polar Pattern (Microphone)Omnidirectional

  • Reviews


    by PowerReviews
    Audio-TechnicaATH-CKS55XiS Solid Bass® In-ear Headphones with In-line Mic & Control

    (based on 1 review)

    Ratings Distribution

    • 5 Stars



    • 4 Stars



    • 3 Stars



    • 2 Stars



    • 1 Stars



    Reviewed by 1 customer

    Displaying review 1

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    (3 of 3 customers found this review helpful)


    Powerful bass without the expense of clarity in mids and...


    from Undisclosed

    Site Member


    • Affordable
    • Comfortable
    • Cool design
    • durable build
    • Great sound quality


    • in line mic cable length

    Best Uses

      Comments about Audio-Technica ATH-CKS55XiS Solid Bass® In-ear Headphones with In-line Mic & Control:

      After weeks of searching and testing for perfect pair of in ear headphones, CKS55xis is the perfect choice. I don't usually write reviews for the products that is mediocre but this products is way beyond that, thus give me the urge to share for others who is looking for a nice in-ear headphone for affordable price and premium quality.

      1. Impressive sound clarity goes hand in hand with amazing bass without any distorsion produced in maximum volume. High and mid frequency never felt so detailed and distinctly layered, let you feel the different instruments playing and different positions in each of the instruments, let you feel as if you listening straight from the recording studio to your ear, any song genre, Instrumental, Jazz, Pop, Techno, Rock and of course RnB with a touch of your own device EQ settings, this earphone will sound as good as high end audiophile headphones. with normal settings, it is really impressive enough.

      2. Excellent noise isolation, I never have to listen over 60% volume, the noise outside simply completely blocked, twist to fit and try other tips (4 sizes provided) to ensure maximum noise isolation and comfortable even after hours of wearing.

      3. Xis model features in line mic, volume slider and a button for music controls and pick up a phone call, works without any issues, good quality omnidirectional mic but for the cable length is too long from earbuds to microphone(bottom of your ribcage), when making calls will pickup external noise from the mic thus picking up the mic and move it closer to your mouth is needed when making in noisy environment such as subway, if the inline mic placed near R or L cable will be perfect (like many smartphones out-of-the-box earphone)

      4. Durable build of headphone body, in line features and the cables.

      minor improvement needed for smartphone callers but for music lovers , perfect sound quality. ok for gamers in quieter place

      Tips, use a cable clipper to position mic in front of your chest for best mic input in noisy environment

      5. Price point is definitely a great bang for your buck, Sony MDR50AP with a bit more expensive price point , couldnt match the sound quality this provided, many complaints of distorsions of the MDR50 when played high volume.

      A small polyester pouch provided, handy and convenient to store.

      all in all, i will definitely keep purchasing ATH products from now on and will recommend to others for its superb product quality.

      • How long have you used this product?:
      • Over a year

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    • Q & A

      Do you have questions about this product?

      Get answers from real customers and in-house experts with AnswerBox.

      2 Questions | 2 Answers
      Displaying questions 1-2
      • Q:

        is it noise cancelling?
        Asked on 1/12/2017 by stef

        1 answer

      • Q:

        Hello, may I have a question? Could this product be applied for Ipad Air2 with full control? It's because I bought one for my android phone, however sometimes I'd like also applied it on Ipad. If possible, it will be much convenient that I don't bring one more headphone while traviling.
        Asked on 4/13/2016 by Joshia

        1 answer



          To receive an answer to your question, please contact the Audio-Technica United States (ATUS) Audio Solutions Team at:


          Answered on 4/22/2016 by ATUS_Specialist2 from Stow, OH
      Displaying questions 1-2

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