Sport Earphones Headphones


Durable Ear bud headset designed for those with an active lifestyle.
incl. VAT – free shipping
Article No. 506189
★ ★ ★ ★ ☆ 4.0
5 Reviews


Combining innovative design and impressive sound quality, Sennheiser’s MX 686G SPORTS is the perfect companion for long runs on the open road. The clever Slide-to-Fit mechanism ensures that these earphones sit comfortably and securely, and the high-output drivers deliver outstanding stereo sound while you push yourself to go the extra mile. The MX 686G SPORTS will also help you to reach the finish line safely, since its open design allows you to hear surrounding traffic noise.

Stay in step and stay alert with the MX 686G SPORTS!


  • Inline smart remote and mic on the cable are compatible with most smartphones and portable players (including Android, Windows Mobile and Blackberry devices)

  • Maximum ruggedness and durability – Sweat and water-resistant

  • Hybrid ear adapters for enhanced bass response and greater situational awareness and safety

  • Antimicrobial ear adapters (SteriTouch)

  • Slide-to-fit system is fully adjustable for an individualized fit

  • Para-aramid-reinforced cable provides superior strength and reliability

  • Oval-shaped cable ensures a tangle-free listening experience and reduced cable noise

  • Convenient storage pouch and cable clip included

  • 2-year warranty

Technical Data

  • Impedance
    30 Ω
  • Frequency response
    18–20,000 Hz
  • Sound pressure level (SPL)
    118 dB (1 kHz/1 Vrms)
  • THD, total harmonic distortion
  • 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
Reviews (5)
4.0 of 5 ★ ★ ★ ★
  • no nick name
    It took me some time to get it right. Once I did, WOW !!

    This set is perfect in any respect. I will just comment about the sound. Well, out of the box, I put them on, connected my Android, and got disappointed by the sound. I tried with my lap top, and got the same impression. I was sure that I've thrown away money... Then on evening I sat and played with the fit a little. I swayed the silicon buds up and then down, keeping close attention to the effect of this positioning on sound. And finally voi-la! As I turned those buds downwards, and rested the ear set slightly at an angle, suddenly all the Sennhieser goodness came to be. The sound suddenly became crisp, bass was deep, and overall music became more airy. Bottom line, you have to experiment to get the most out of it, and once you reach the sweetest position that fits your ears, you'd love them, I'm sure.


    Very well built. Best materials. Great durability. Perfectly fit my ears. Not fatiguing at all even after long hours. Android operation is perfect. Sennhieser sound quality.


    One (well, I) must get to know them a little.


    Telephone calls, gym and workout.


    I would recommend this to a friend.

  • MrTim
    New Zealand
    Great Evolution, Bluetooth ones please...?

    Bluetooth these babies, please, not just the CX range.... Come on :)


    Previous review saying lack of bass?? What are they listening to? I've had the last 4 generations of the MX range & found all of them to be great. Once you get used to the silicone ear pieces, these sound booming & they are lasting well too.


    Not a fan of on-the-cable controls. The slidey up-into-the-ear holders have loosened a little bit & the cable clip has gone rusty


    I wear mine all the time, that they are not isolating means you still feel aware of your surroundings on buses & on the street. Comfortable for wearing when running too


    I would recommend this to a friend.

  • Alex333

    In summary: a comfortable pair of headphones with atrocious sound quality – certainly not worth £50


    Very comfortable and feel durable.


    I am so disappointed with these headphones. The sound quality is terrible. I am not expecting a lot for £50, however my £10 pair of Sennheiser’s offer better sound quality than these. The base is non-existent, the treble is terrible, and everything sounds very tinny and distant. Whilst I didn’t buy these for optimum sound quality (I bought them as durable sports headphones, which these are), for the price I expect a lot more, especially from a company like Sennheiser. I have bought Sennheiser for years, from cheap to very expensive headphones and have never been disappointed. This is the first time I have been let down by one of their products. If I listened to these in a blind test, I would have thought they were a £2 pair of headphones, and this is no exaggeration.



    I would not recommend this to a friend.


  • Quick Guides
    • MX686G QG 558218 0716 A04 INT (3.9 MB) Download

  • Safety Guides
    • 686G SPRINT A3 SG 558217 0516 A04 INT (3 MB) Download

  • EU Declaration of Conformity
    • EU Declaration of Conformity CXxxxG, M2xxxG, MXxxxG,OCXxxxG, PMXxxxG (230 KB) Download