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Sennheiser PMX 685i Sports In-Ear Neckband Headphones

by Sennheiser
3.7 out of 5 stars  See all reviews (91 customer reviews)
RRP: 59.99
Price: 44.95 & FREE Delivery in the UK. Details
You Save: 15.04 (25%)
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  • Robust moisture resistance for active sports use, rinse clean In ear design for greater situational awareness and safety (outdoor use)
  • Inline smart remote and mic on tough reinforced cable
  • Ultra lightweight neckband for comfort fit, also under half helmets
  • Natural sound that delivers energising volumes
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Frequently Bought Together

Sennheiser PMX 685i Sports In-Ear Neckband Headphones + Belkin Sport Armband for iPhone 4/ 4S
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Product details

  • Product Dimensions: 2.5 x 2.5 x 2.5 cm
  • Boxed-product Weight: 2.3 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: PMX 685i
  • ASIN: B0094R4Q6Y
  • Date first available at Amazon.co.uk: 1 Jan 2012
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (91 customer reviews)
  • Amazon Bestsellers Rank:
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Product Description

Product Description

PMX 685i 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. Optimized for Apple users.

PMX 685i SPORTS Headphone
PMX 685i SPORTS Headphone
  • Lightweight, neckband design, also perfect fit under half helmets
  • Open acoustic design for perfect, natural sound reproduction, making it easy to hear your surroundings
  • Easy control of iPod and iPhone via an integrated remote with microphone
Learn more about the PMX 685i 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.

  • Lightest headband in its class, can be worn around the neck when not in use
  • In ear fit allows background sound through for greater safety outdoors
  • Natural 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) – perspiration and water resistant
  • In-line smart remote and microphone allows you to control your music and take phone calls (Apple devices only)
  • Absolute comfort – the lightest in its class
  • 2-year international warranty
PMX 685i Accessories
PMX 685i 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 five 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 PMX 685i 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
Product Details
PMX 685i
TypeEar Canal Headphone with Ear Hook In Ear Headphone with Headband In Ear Headphone with Neckband
Frequency Response18 – 20,000Hz18 – 20,000Hz18 – 20,000Hz
Acoustic DesignSealed Acoustics Block Outside Noise (Best For Indoor Use Open Acoustics for Natural Sound (Best for Outdoor Use)Open Acoustics for Natural Sound (Best for Outdoor Use)
Impedance16 Ohms16 Ohms16 Ohms
Remote and MicYesYesYes
Cable Length1.2 m Symmetrical Cable 1.2 m Symmetrical Cable 1.2 m Symmetrical Cable
Connector Plugs3.5mm Angled Plug3.5mm Angled Plug3.5mm Angled Plug
Sound Pressure Level120 dB120 dB120 dB
Warranty2 years2 years2 years

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews
28 of 30 people found the following review helpful
Verified Purchase
These sound INCREDIBLE for relatively cheap headphones. I'm super fussy and have been through a ridiculous amount of headphones seeking the perfect workout pair.

These truly sound amazing... there's not much more you could ask for in terms of sound quality in a sports headphone up to 50. High end clarity may be a bit lacking but the bass thumps nice and deep without ever being muddy or overwhelming, and the mids and top end are delivered with excellent clarity and energy - not a flat 'natural' response, but one very well suited to running or the gym etc.

But I cannot use them and that's thanks to Sennheiser having a stupid remote unit located a few inches along the wire as it hangs out of your left ear. So what happens as you run is the remote dangles about, hitting your cheek or neck because it isn't all that lightweight. Plus you can feel it pulling at your ear as you run and although the headphones stay beautifully in place, the tugging sensation on your left ear is highly irritating. I have tried endlessly to find an arrangement using the provided cable clip to stop this awful dangle and pulling sensation and occasionally i've managed to lessen it but in the end I have simply given up with these. I would seriously be standing on the treadmill for 5, 10 minutes at a time trying to adjust the cable to prevent the problem of the dangling remote.

I don't even care about having a remote! The iPhone is on the treadmill's console right in front of me so if I need to adjust I'll just do it via the iPhone screen, I really really do not need to faff about with a fiddly little dangling remote unit!
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32 of 36 people found the following review helpful
5.0 out of 5 stars Great Pair Of Headphones! 11 Nov 2012
Verified Purchase
Having read up on several other types of earphones for running/gym work I decided to opt for these in preference to the PMX680i. I've tried a few sets of cheaper earphones but as with a few before me, once the proverbial metabolism kicks in on the jogging machine they tend to pop out like corks from a bottle! The ensuing battle to get them to stay in place thereafter is a losing one, a little akin to trying to grip a bar of soap with wet hands.

Fortunately the folks from sen/adidas appear to have found the solution. Having not owned the PMX680i I can't do a physical comparison, but going off pictures/reviews: the headband is thinner, the cable only goes from one ear rather than both, the remote volume switch is easy to use (but sadly only appears to work with apple products, that said the use of apples "voice control" here is really effective), not only are these really lightweight (even lighter than the 680i), the sound is fantastic with an excellent bass.

The headband is comfortable and is that light you wouldn't know it was there. Running it didn't budge at all, you can do sit ups with hands at the side of your head, the only issue might be if you leant your head back on some apparatus. The cable is about 1.2m which isn't too long that it gets in the way, and is itself very sturdy and doesn't seem to want to get tangled!

Have also worn these whilst out on my bike, and although not noise cancelling, this is not detrimental to sound they produce. However, if you have a cycle helmet that is slung low at the back you may have problems keeping the phones in place. I don't wear glasses, but did try them with a pair of sunglasses and although it was noticeable there was something resting on your ears, it wasn't to the point of distraction or annoyance.

All in all I'm very pleased with them, and for anyone like me who had issues with popping ear plug type earphones - this could be your solution!
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2 of 2 people found the following review helpful
3.0 out of 5 stars Good sound but limited life 22 Jun 2014
Verified Purchase
I like these Sennheisers and I've had various models. The sound is great.

The wraparound style is good for the gym and running but you may have to adjust position if your are sitting on a bench or lying on the floor.

Trouble is they tend to have a life of a year or less. The weakness is the joint between the cable and the plug which fails. You'll know this when the sound switches to mono or keeps switching tracks or generally misbehaving.

At the price a longer life would be good!!
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4.0 out of 5 stars Great for activities 18 Aug 2014
Verified Purchase
I originally bought these for running as I find the in-ear and over-ear earphones don't sit very well on me (maybe I just have odd shaped ears!). However, after running for a while, I've since decided that I don't like listening to music while I run, so I now use these in the office to listen to music (as I don't like in-ear bud style earphones and I don't want headphones that flatten my hair and give me 'headphone head').

For a small set of headphones they perform very well. I was very surprised at the amount of base and clarity of the midtones. For sports and/or activity use, they do exactly what it says on the tin... Sennheiser quality audio, lightweight, comfortable and they stay in place (at least during light to moderate activites like running).

On the few times I've used these running, they did the job really well. Good, clear sound, lightweight and they stayed in position for full 30-60 minute runs without needing any adjustment.

The only downside for me is the length on the cable for my current use in the office... they only just stretch far enough from my computer to my neck. But then, they weren't designed for this use, so I can't really blame them. But if the cable was another 20-30cm longer it would be perfect for my altered purpose (but then runners may complain that the cable is too long).
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Most Recent Customer Reviews
5.0 out of 5 stars Five Stars
Excellent for both listening to music and talking on the phone on my Galaxy S4 and Macbook Pro.
Published 4 days ago by Kindle-sinnisz
1.0 out of 5 stars Not as good as the PMX 680
Not as good as the PMX 680, which is far cheaper.
Firstly the cable is too long.
Secondly the pin to go into my I Pad air is far too narrow and the sound therefore is... Read more
Published 10 days ago by Les's top 20
5.0 out of 5 stars Possible fix for issues, PLEASE READ
Ok, so firstly a little caveat;

I am writing this before having received the product, only because I can see a way around the issues encountered by others and it will... Read more
Published 17 days ago by J. Warren
5.0 out of 5 stars Great Headphones
Awesome set of headphones. Great sound. Comfortable to wear. The bead controller is a little annoying but, nothing too onerous.
Published 23 days ago by meatn2veg
3.0 out of 5 stars Great sound shame about the location of the volume controller
Headphone sound is excellent, they're durable a great fit and still work well even after a sweaty gym session. Read more
Published 1 month ago by Adrian Adams
5.0 out of 5 stars Brilliant!
These are the best sports headphones I have bought. They are rugged and practical. The sound is far superior to all sports headphones I have tried. Read more
Published 1 month ago by Gwaednerth
3.0 out of 5 stars Great sound but not very comfortable
For its size, the sound is really good. I tested frequencies down to 20hz and they are heard - you won't get the punch of bigger more expensive headphones, but it's pretty... Read more
Published 1 month ago by Andreas Moyseos
5.0 out of 5 stars Great product
Very nice sound quality. Light weight for training. Great for mountain biking. Bit awkward in the gym due to the back part. But they do not fall off.
Published 1 month ago by Brian
1.0 out of 5 stars Horrible tinny, distorted sound
It is seemingly impossible to find sports headphones that doesn't short circuit and break when you sweat. Read more
Published 1 month ago by Jacob Melin
4.0 out of 5 stars Very good headphones
the audio quality is as I would expect from Sennheiser - very good, and hard to beat with in-ear headphones. Read more
Published 1 month ago by Tim Ball
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