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Sennheiser MX685 Sports In-Ear Headphones

by Sennheiser
3.8 out of 5 stars  See all reviews (71 customer reviews)
Price: 34.99 & FREE Delivery in the UK. Details
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Dispatched from and sold by Amazon. Gift-wrap available.
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  • Maximum ruggedness and durability
  • Sweat and water-resistant
  • Blocks less outside noise so you stay aware of your immediate environment
  • Various ear adaptor sets for maximum comfort
  • Customized fitEarFin holding system for secure and comfort fit during workouts
Visit the Sennheiser Headphones Store at Amazon.co.uk
Can't find the headphones you're looking for? Is this Sennheiser product not available? Want to browse alternative Sennheiser headphones? Browse our full range of Sennheiser headphones, earphones and accessories at the Sennheiser headphones store at Amazon.co.uk. From sports to noise-cancelling headphones, DJ to home audio options, smartphone and tablet compatible headphones, and many more, visit the Sennheiser headphones store.

Frequently Bought Together

Sennheiser MX685 Sports In-Ear Headphones + DIGIFLEX Armband for Apple iPod Touch 1st, 2nd, 3rd & New 4th Generation 8gb, 16gb, 32gb & 64gb & iPhone 3G 3Gs
Price For Both: 37.98

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  • Buy any Headphones sold by Amazon.co.uk and receive a 1 credit to try out music downloads from our Digital Music Store. Here's how (terms and conditions apply)

Product details

  • Product Dimensions: 2.5 x 2.5 x 2.5 cm ; 100 g
  • Boxed-product Weight: 1.8 Kg
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
    Find out more about our Delivery Rates and Returns Policy
  • Item model number: 504968
  • ASIN: B0094R4PBU
  • Date first available at Amazon.co.uk: 1 Jan 2012
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (71 customer reviews)
  • Amazon Bestsellers Rank:
  • Click here for information about recycling electrical and electronic products

Product Description

Product Description

MX 685 SPORTS Headphone

For all men and women who are truly passionate about their sport and their music, Sennheiser sets a new standard for premium sports headphones. Designed in conjunction with Adidas, these headphones have been tested extensively in the field for ergonomic fit, durability and reliability. Think of these headphones as ‚from Athletes for Athletes‘ who place rigorous demands on their equipment and don’t settle for compromise.

  • In-ear open sound allows you to easily hear your surroundings
  • Unique ‘slide-to-fit’ system (not visible) to customize height for comfort and a more secure fit (patent pending)
  • Perspiration and water-resistant, to easily cope with challenging conditions
MX 685 SPORTS Headphone
MX 685 SPORTS Headphone
Learn more about the MX 685 SPORTS

This sports line is brimming with ingenuity; from inner protection against perspiration and pouring rain, to the provision of a close, secure fit so that you are able to concentrate and focus on what really matters to you. What’s more, these headphones deliver an energizing beat to tune yourself into.

  • In ear fit blocks less background noise for safety outdoors
  • Natural more open sound that is acoustically fine-tuned to deliver high volumes
  • Designed to absorb shock and minimize wear, heavily tested for intense periods of use – tough strain relief for example
  • Can be rinsed clean after use under running water (store air-dried)
  • Customized fit – revolutionary EarFin holding system (rubber hooks) for secure fit, individual height adjuster to suit different ear shapes
  • 2-year warranty
MX 685 Accessories
MX 685 Accessories
Did you know?

Bringing together the best of both worlds, Adidas and Sennheiser continue to challenge standards. As a result, this is the fourth generation of this range and contains a choice of two different models. Each features a more secure holding mechanism that provides better wearing comfort, tougher cables to withstand any sports activity and a powerful and energizing sound.

Sennheiser recommends this headphone for...

Sportsmen and women who exercise outdoors in a built-up environment and need to be aware of traffic for example. Music lovers who are looking for a pair of headphones that will defy the harshest conditions that will also deliver great sound, an excellent fit and maximum comfort.


This headphone is compatible with any device with a 3.5mm headphone socket for audio, including iPod, iPhone, miCoach, other portable music/video players, mobile phones and audio-video systems that are installed in gyms (iPod and iPhone are trademarks of Apple Inc. registered in the US and other countries).


The MX 685 is covered by a 2-year warranty. Sennheiser’s worldwide service network will provide swift and smooth handling of any case of warranty that might occur. Strict German build-quality standards.

Why Sennheiser?

Sennheiser is the brand of choice for many high-profile recording artists and live sound engineers, delivering the ultimate audio experience to people who crave true-to-life sound. For over 65 years, Sennheiser has applied its in-depth audio research to the development of premium headphones, microphones and headsets. Every Sennheiser product endures rigorous quality control tests to ensure you receive durable, great-sounding headphones that will withstand daily use in a variety of environments.

Meet the Range
Product Details
Product Details
TypeIn Ear HeadphoneIn Ear Headphone
Frequency Response18 – 20,000Hz18 – 20,000Hz
Acoustic DesignOpen Acoustics for Natural Sound (Best for Outdoor Use)Sealed Acoustics Block Outside Noise (Best For Indoor Use)
Impedance16 Ohms16 Ohms
Volume ControlNoNo
Cable Length1.2 m Symmetrical Cable 1.2 m Symmetrical Cable
Connector Plugs3.5mm Angled Plug3.5mm Angled Plug
Sound Pressure Level118 dB120 dB
Warranty2 years2 years

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews
12 of 13 people found the following review helpful
5.0 out of 5 stars Great earphones at a good price! 17 Nov 2012
By uncle barbar TOP 100 REVIEWER
Vine Customer Review of Free Product (What's this?)
These are a great pair of earphones (not sure that I would call them headphones - even "in-ear headphones" seems like a strange title for them.

They come with a selection of gel and foam "heads" for the ear phones themselves for comfort and to ensure they suit you best and fit in your ear the most snugly. They also have an adaptable upper "hook" which fits into your upper ear - you can adjust this so this upper hook is either shorter or longer. Don't worry it's not painful or anything - it just fits snugly around this channel of your upper ear to ensure your ear phone does not fall out. I have rather large ears (one of the reasons for my username!) and earphones are always falling out - but not these ones! Sitting or lying down and they are fine - but even walking or running they are still sitting snug in my ear!

The other thing I like about them is the quality of the sound coming from them. I LOVE Sennheiser headphones - I bought a pair about 5 years ago and then bought another 3 they were so good - and have been using them ever since! So was interested to see what their ear phones were like - and the quality is excellent! Whether you want to hear classical music, contemporary music or heavy stuff the quality of the sound is crisp and precise. I have listened to all these - and also talking books and even meditation stuff on these headphones and its all crystal clear.

I tried the earphones on a small mp3 player, on a radio, a tablet and my mobile phone. The sound quality was great on all - and most importantly for me - as loud as I wanted!

They come with a small Adidas bag to keep your earphones and ear accessories in!

They also come with a little clip to clip your headphone wire to your clothes and the strangest thing about them is that they recommend you wash them under a tap - I kid you not!

Great earphones at a good price. Recommended.
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17 of 19 people found the following review helpful
Verified Purchase
The Amazon description of these headphones says
"* Integrated Smart Remote & Microphone - Provides you with an easy option to play/pause playback and change."
This is simply not true - the headphones do NOT have an integrated smart remote or microphone.
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1 of 1 people found the following review helpful
4.0 out of 5 stars Take some getting used to 1 Dec 2013
Verified Purchase
I use this headphones for cycling and walking mostly, they started off falling out every step or with any head movement. But once I took some time to set them correctly they are very comfortable, and don't cancel out all the background noise which is good for safety on the bike.
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By Q
Verified Purchase
They are secure in the ear when running which is the most important point. In terms of comfort they are okay, but you can definitely feel that they are there. It being waterproof is very convenient. Also, I liked the various ear piece covers they gave of different sizes. On the other hand, finding out which one is the left ear piece is very difficult in the dark as the little dot bump (only on the left ear piece) is hard to feel.

I have few ear phones to compare them to so I can't say about sound quality or other points of comparison such as value for money.
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5.0 out of 5 stars Five Stars 13 July 2014
Verified Purchase
Really good. Practical while fashionable.
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4.0 out of 5 stars Great for running 29 Jun 2014
Verified Purchase
Great for running , comfortable when you get use to them , good sound quality but your still able to hear your surroundings , clever !
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5.0 out of 5 stars The Sennheiser MX685 headphones 27 May 2014
Verified Purchase
It is the first time to buy from Sennheiser and I was surprised of the quality ! The sound is clear even at high volumes! I hear music while I m running. No problems with the movement. The will stay at their position for hours (I have run 2 hours with these on). Very comfortable. Definitely recommended. Worth the price. I am using them with Nokia Lumia 925 and Nokia Stereo bluetooth headset.
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5.0 out of 5 stars Fantastic bit of kit 9 May 2014
Verified Purchase
Fantastic bit of kit. I was unsure when I first bought them, but did so on recommendation. Great fit. Allow the music to flow but still allow external noises through. Great for awareness whilst jogging.
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Most Recent Customer Reviews
3.0 out of 5 stars Ear fit not good
Fitting for the ear is not easy and is not consistent. Sound quality is ok. Does keep the sweat out.
Published 2 months ago by R. Relf
5.0 out of 5 stars Great in-ear headphones
I use them, since six months, in my daily running workout of 12.427 423 845 mile (20 kilometers) in all weather conditions, and I sweat a lot. Read more
Published 3 months ago by Vitor
4.0 out of 5 stars Does what it says on the box.
Good earphones for running outdoors. Also suitable for Indoor/Gym but the earbuds are designed in such a way that they let some outside noise in. Read more
Published 4 months ago by Andrew Hennessy
4.0 out of 5 stars amazing ear speakers
These ear speakers are great for running outside in all weathers as they are waterproof & give a good quality loud sound. Read more
Published 4 months ago by Lou
5.0 out of 5 stars Wonderful - great for running, never fall out of ears.
Onto my 2nd pair after losing all the rubber bits for my ears (my own fault). Can't recommend highly enough, the last pair were still working when replaced, did 750 miles in... Read more
Published 4 months ago by Vlad
5.0 out of 5 stars Quality headphones
I've been using these for approximately 5 months now. Mostly use them when on road runs. Particular reason I bought these headphones was so when you start to get a bit hot and... Read more
Published 4 months ago by M. Jackson
4.0 out of 5 stars Decent
These aren't bad headphones depending upon which context you look at them in.

For running, they have enough bits and bobs for most people to be able to customize them to... Read more
Published 5 months ago by Amazon Customer
1.0 out of 5 stars Unuseable
I cannot use normal in-ear headphones, because they simply do not stick in my ear. My ear doesn't lock the headphone in. Read more
Published 5 months ago by Bjorn
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