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Sport 400

Sx-400 & S-400

Product Description

Meet your perfect workout partner.
No matter the workout, these tips are designed to stay put,
so you have earphones that move with you.

No-Slip Fit

Earphones falling out? Heat activated memory foam expands to unique ear canal shape, creating a custom, secure fit for amazing in-ear retention. Music while exercising is all yours.

Noise Reduction

Seals ear canal from environmental distractions. Enjoy music without raising the volume to compensate for external noise.

Enhanced Audio Performance

Maximize your listening experience. Hear music how it’s supposed to be heard, with all its highs and lows. Comply Foam seals the ear canal and funnels in pure sound.


Acoustically transparent filter ensures sweaty ears are no problem. This protects your earphone from moisture damage.  




Colors: Black
Foam Height: Small, Medium, and Large: 9.91 mm ± 0.6 mm (0.390” ± 0.025”)
Diameter at proximal end (end attaching to device):
Small: 11.56 mm ± 0.75 mm (0.455” ± 0.030”)
Medium: 12.83 mm ± 0.75 mm (0.505” ± 0.030”)
Large: 14.10 mm ± 0.75 mm (0.555” ± 0.030”)
Materials: Polyurethane foam, thermoplastic elastomer (all RoHS compliant)
Inside diameter of core: Depends on earphone design. 

Product Reviews

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  1. Very useful for my iBeats while running

    Posted by Sander on 24th Jun 2016

    I bought the Sport 400 for my iBeats in-ear headphones. The main reason I bought this headphones was to use them while running. But I quickly experienced that with the normal in-ear tips they felt out pretty easily and they were not comfortable to wear while running. Therefor I was looking for something else and I found the foam ear-tips.

    I bought the Sport 400 and the Isolation 400 at the same time. Both are shipped very well and the tips are delivered in a very good package, which you can re-use to put them in if you switch them.

    If you follow the instructions on how to put them in you can easily put them in your ear and they are really stuck. But with some small force you easily pull them out. My experience with the Sport 400 is that they are very good while running but they sometimes fall out. The Isolation 400 can be better positioned but are not sweat guarded.

    But overall I would recommend these ear-tips because they fit perfectly and are very useful while sporting.

  2. Not at ALL what I'd hoped for!!!!

    Posted by Gem on 28th May 2016

    I had received my Brainwaves earbuds headphones with Comply foam buds on and I really liked them. When they were wearing out, I ordered the replacement buds recommended, Comply Sport... I received them, put a pair on and within 2-3 weeks they had to be thrown away. I feel this was VERY POOR value for money and I won't ever purchase them again.

  3. Not the best choice

    Posted by Unknown on 27th May 2016

    I've tried sport, comfort and isolation, and this product didn't quite meet up to the expectations.

    They are not comfortable and durable. My first pair were broken after only 2 weeks, and after only one week I can see great wear. For small ears they are not Comfortable either. I will still use Comply for my earbuds, but I will choose the comfort model every time, because they are so much better overall.

  4. Quality Ear Tips

    Posted by Bob on 10th May 2016

    Comply tips dramatically improved the sound quality of my wireless earbuds. Not only was the sound quality enhanced, but the comfort improved with Comply Foam tips! I would strongly recommend the investment.

  5. Great!!

    Posted by Pat on 10th Apr 2016

    A really wonderful product!! Purchased for two pairs of Skullcandy inner ear headphones, they fit both perfectly and complement them really well! I've had no trouble with them coming lose while training/running since!!absolutely worth every penny!! I'm surprised that they aren't a standard option from the headphone manufacturer!!

    Well worth every penny!

  6. Daysleeper

    Posted by Niklas on 28th Nov 2015

    As a daysleeper they suits me perfect. They keep out noise and don't sore mycket ears.

  7. Great product

    Posted by Bauke-Jan on 25th Aug 2015

    They never fall out and block almost every noise! very good I never want to use thos rubber things again.

  8. Great Product

    Posted by Unknown on 10th Aug 2015

    Finally I found earbuds that fit my ears and do not fall out. Very comfortable. I would suggest these to everyone.

  9. Great for running

    Posted by Unknown on 27th Jun 2015

    Fit sniggly

  10. Excellent

    Posted by Rob on 3rd May 2015

    I'm never disappointed with Comply Foam Tips. They are a must have for all of my headphones.

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