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SonicFuel® 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.

  • headphones with mic

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

  • Overview

    Music is your energy for life – the fuel for your heart and soul. SonicFuel® headphones are specifically designed for active, daily use, to power you forward by delivering extraordinary comfort, style and an immersive listening experience that never sounds artificial, processed or filtered. Just pure sonic goodness for the high-octane tempo of your life.

    The ATH-CKX7iS SonicFuel® in-ear headphones feature stay-in-place fit, providing unique comfort in addition to optimal sound. The C-tip configuration nestles within the ear where it locks in place for extra stability. A 360˚ rotating eartip adjusts to the unique angle of your ear canal for personalized fit and improved sound isolation. Customize your comfort with a multitude of C-tip & silicone eartip sizes or use the included Comply™ foam eartips for true sonic immersion. Enhanced driver system delivers clear, robust audio for the extra kick you need.

    In-line volume and microphone controls (on compatible smartphones) allow you to control music & phone calls without missing a beat. A newly designed flat cable eliminates annoying tangles and lasts longer. The included carrying pouch keeps your headphones organized, even if the rest of your life isn’t.
  • Features

    • Enhanced driver system delivers clear, robust audio for the high octane tempo of your life

    • 360° rotating eartip adjusts to the unique angle of your ear canal for personalized fit and better sound isolation

    • C-tip design fits the shape of your ear for reliable, stay-in-place comfort

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

    • Flat cable eliminates annoying tangles and lasts longer

    • Includes carrying pouch, Comply™ foam tips, silicone eartips (XS/S/M/L), C-tips (S/M/L), and tangle-free flat cable

    • Available in black (BK), blue (BL), purple (PL), red (RD), and white (WH)

  • Specifications

    Driver Diameter8 mm
    Frequency Response10 - 24,000 Hz
    Maximum Input Power40 mW
    Sensitivity102 dB/mW
    Impedance16 ohms
    Weight10 g (without cord)
    Cable1.2 m, Y-type
    Connector3.5 mm gold-plated stereo 4-pin mini-plug, L-type
    Accessories IncludedCarrying pouch, Comply™ foam eartip (M), silicone eartips (XS/S/M/L), C-tips (S/M/L)
    Type (Microphone)Condenser
    Sensitivity (Microphone)-44 dB (0 dB=1 V/Pa, 1 kHz)
    Frequency Response (Microphone)100 - 10,000 Hz
    Polar Pattern (Microphone)Omnidirectional

  • Reviews

    Good, but not great


    I work out a lot and I listen to music while I do it. If that's you, these headphones are Not for you. The sweat gets to them within 6 months and they'll be malfunctioning. I've had them for well over a year and they still work for the most part but they are starting to show serious fatigue. The cord has to be messed with to get them to work properly and the volume dial no longer works properly. But this is all because I use them a lot while I am working out. They did not advertise that they would keep up in that sort of an environment, so I do not blame the headphones for this failure. I also wear them on a day to day basis, I listen a lot of music, and it varies from classical to metal, these have been the best headphone I have had to date. They are VERY GOOD for day to day use. The sound is good, the bass is solid, hey have a wide range of frequencies so every type of song you listen can be heard very clearly. Over all, they are good for day to day use but not for working out in. They are very stable in your ear and will not fall out, it takes a few uses to get used to putting them in but its not bad at all. They do after 6 or so hours of continuous listening start to hurt your ear because of the way the headphone is shaped, but this may be a personal problem, and I doubt too many people listen to music that long that often on a set earbuds anyways. Also they are a little bulky, but again it is not too bad. And if your wondering how I treated them, I kept them in a hard case until use every day.

    New York


    Finally a headset that fits


    I love this product!!! The ear buds swivel so no forcing them into your ears, the hook keeps it in place. The sound quality is great. The microphone works flawlessly.

    Torrance, CA, USA

    ATH-CKX7iS SonicFuelâ„¢ In-ear Headphones with In-line Mic & Control

    4.5 2


  • Q & A

    How to fix the plug? It is a liittle bit broken so it have a bad connection


    Thank you for your inquiry. Please contact our Service Department at 330-686-2600 ext. 5003. They would be happy to help you.


    Is there a list of compatible devices, and levels of compatibility for this set of ear buds? This would greatly help me, and I'm sure other people, decide whether or not to purchase them. So I'm interested, because they are on the top ten review. I personally have an HTC M8, and my wife will soon have the iPhone 6+, so I would like to know the details on both, you can provide a list. Thanks in advance!


    Unfortunately we are unable to maintain an ever-changing list of compatible model phones. The ATH-CKX7iS use the CTIA Headset Standard for connectivity and functionality. They should be compatible with the iPhone 6. We have not been able to verify compatibility with the HTC M8. The headphones are compatible with the HTC Desire, Desire HD and Aria models however.


    Headphone Compatibility ATH-CKX7iS SonicFuelâ„¢ In-ear Headphones with In-line Mic & Control Are the above listed headphones compatible with the Nokia Lumia 928 smartphone? If so, can you control the master volume on the phone or only adjust the volume based on what the master volume is set to? For instance, if the master volume on the phone is set to 17 and the max is 30...can the phone adjust the volume past 17?


    Thank you for your inquiry. If your smart phone has a 3.5 trrs connector, more than likely it will work. Please note that it is nearly impossible for us to test every smart phone because there are so many. Some or all functionality may or may not work with your smart phones