behars Loading... Please wait...

Isolation 400

Tx-400 & T-400

Product Description

Hear music the way it was meant to be heard.
A simple audio hack that gives you the isolation you want with the comfort you need.

Maximum Noise Isolation

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

Superior Audio Experience

Precise, optimal seal channels sound directly into the ear canal to transform your listening experience.

Secure Fit

Heat activated memory foam expands to unique ear canal shape, creating a custom, secure fit for amazing in-ear retention.


Acoustically transparent filter to prevent wax and debris from entering the sound port. Keeps your earphone sound quality how you like it.





Colors: Platinum, Black, Red, Blue
Small / Medium / Large: 10.67 mm ± 0.65 mm (0.420" ± 0.025")
Diameter at proximal end (end attaching to device):
Small: 10.67 mm ± 0.50 mm (0.420" ± 0.020")
Medium: 12.45 mm ± 0.50 mm (0.490" ± 0.020")
Large: 13.97 mm ± 0.50 mm (0.550" ± 0.020")
Materials: Polyurethane foam, thermoplastic elastomer (all RoHS compliant)
Inside Diameter of Core: Depends on earphone design. Several stock sizes available.

Product Reviews

Write Review

Showing reviews 1-10 of 60 | Next

  1. Astounding isolation and sound depth with a real "no-pressure" fit!

    Posted by Steve H on 3rd Feb 2016

    An "airtight" fit is essential for earbuds to deliver their designed sound quality.
    I have spent way too much time with standard tips constantly adjusting them to 1) establish this fit without 2) feeling like I have this giant potato in my ear.
    Bought the Comply TX400's and - problem gone. Totally gone. Slip them in gently and within a few seconds the seal is established - no pressure feeling!! What a GREAT product!

  2. Expensive near miss

    Posted by John on 4th Dec 2015

    First I tried medium, too small. Then I tried large which barely works but still too small. I don't see an offering of a size to fit my ear canal but then, I've already spent way too much money on guesswork to spend any more with these guys. I'm 40 bucks down with no usable product and I've given up. Once you open the package, you can't return them.

  3. Used to be the best...

    Posted by Unknown on 17th Nov 2015

    I've used these for years and loved them. They used to be better than any other earbud tip on the market.

    But having said that, I feel that the quality of these tips have gone downhill in the past year. The last two sets I ordered have fallen apart way too quickly. It's a shame, may not continue to purchase this item anymore.

  4. Good IE Tips

    Posted by Les on 15th Nov 2015

    +Easy to install
    +Comes with 3 sizes
    +Awesome noise isolation
    +Because they're foam, they're easy to squeeze and insert

    -Could just be me, but the tips can become itchy over long listening sessions.

  5. Probably not worth it

    Posted by Aaa on 7th Nov 2015

    Doesn't isolate so much as expected, normal silicones are fine. Collects ear dirt easier than silicone.

  6. Better than stock, but not great

    Posted by Unknown on 15th Oct 2015

    I'm using these on a set of LG Tone Pros and they're definitely a step up from the stock tips I got with those. Having said that, the Comply tips are pretty bad compared to the foam tips I got on my Shure earbuds. The Comply tips tend to deteriorate very quickly... they just kind of fall apart wherever they get squished to fit in your ear. I probably go through a pair every 3 months, and that's because I really stretch them. As they deteriorate, their noise isolation gets worse and worse too. At this point, I'm really only using these because there's no other better quality option. If Comply offered better quality tips for more money, I'd certainly buy them. You can even see in the pictures, the foam looks kind of porous and it just starts breaking apart. In short, Comply is on the right track with these but they definitely need work and better quality materials.

  7. Best headphone add-on you can get

    Posted by Unknown on 9th Oct 2015

    These make ordinary headphones sound extraordinary. I cannot imagine not having these in the future. If you haven't tried them yet you are denying yourself an excellent audio experience.

  8. Good set

    Posted by Ivan on 3rd Oct 2015

    Perfect fit with my Trinity Hyperion, good quality at all level for when I'm sporting (they're really staying in all the time).
    Comfortwise, I may try the Ts-series in the future.

  9. Make a great headphone better TX400

    Posted by TDREDEAU on 7th Sep 2015

    1st a great buy - would have paid more now that I know.
    2nd allow my Beats to perform like I knew they could
    3rd will buy more soon

    All reason it is not 5 start.
    I use them all the time now - I think it got wet while working out and it lost some of it's forming power. slightly weaker seal in my ear

  10. Only Satisfactory

    Posted by Unknown on 11th Aug 2015

    For the first time ever I am disappointed by the quality of the tips for the Fidue A83. The foam feels rubbery and takes a very long time to sit correctly in the ear canal.

    Perhaps the production could be improved!

Showing reviews 1-10 of 60 | Next

Back to Top