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SH40-80 Carbon Fibre ANR Bluetooth Headset Mk II


(3 customer reviews)

New for 2018 is the SEHT SH40 series of headsets. Utilising Carbon Fibre technology we have managed to drastically reduce the weight of the traditional headset while still retaining an impressive performance. Carbon Fibre is not only extremely lightweight it is very strong making it an ideal material for a headset.

Adding superior active noise cancellation to the SH40 series the SH40-80 boasts 44db of combined noise attenuation which, with the 330 grams on head weight, makes this one of the quietest and lightest ANR headsets in its class as well as being one of the most eye catching.

Bluetooth technology means you can wirelessly connect to your other technology in the cockpit as well as allowing you to keep in touch if needs be with full two-way connectivity. The SH40-80 also has a wired input and with a hand control that enables you to determine what priority your external input has to allow you full control. The SH40-80 is truly a superb headset that delivers high performance and features with a price and service level that only SEHT can deliver.


The SH40-80 ANR Headset features superb noise reduction performance for crystal clear radio communication and attractive, light-weight Carbon Fibre shell.

  • 5-year SEHT warranty
  • Breathable faux kid-leather ear seals as standard
  • Bluetooth Connectivity
  • Auxiliary input and cable
  • 44dB NRR
  • Independent L & R volume controls
  • Carbon-Fibre shell headset
  • Lightweight 285 gram on head weight
  • 2 x AA batteries

3 reviews for SH40-80 Carbon Fibre ANR Bluetooth Headset Mk II

  1. Brent Wild (verified owner)

    Delivery was fast and tracking number shared when requested via email. Looks good and is light headset. Flying tomorrow and keen to test fully. The size of the control box is a bit bigger than expected, but not too fussed. Bluetooth works well and was easy to setup. (Not geared for music, so don’t expect too much) No cancelling seems to be working in my house, so looking promising
    Will share full feedback of flight performance once tested.

  2. szcsongor (verified owner)

    After flying some hours with this headset I thought I can give a short review.

    – all the features of a high-end headset (ANR, BT connectivity, low weight) for almost half the price

    – cheap, plastic control box for ANR / BT, which even had a defect on my headset. I was basically unable to open the battery compartment (I also asked others and everybody failed), so I had to unscrew the box (risking to lose the warranty, but then I did not want to send back the headset on my own expense just because of this) and force the door open from the inside with the help of a screwdriver. The plastic cover was so firmly stuck, it must be a bad design or just a factory defect.
    – sound squelch problems with my own microphone. Strangely when I hear myself back in the headset, there is a definite latency: I start to hear myself only after the first word or so. I asked my instructor but he hears me well (just as ATC), right from the first instant, so it can’t be a general squelch setup problem. The mic is also of course right in front of my mouth, if it was any closer I would chew on it. All other incoming radio sounds and ambient sounds I hear well without latency, it’s only my own mic, which produces this weird phenomenon. Would be nice if someone know the solution to this. I hope it’s not another defect with my headset.

    All in all, I’m satisfied so far, but these problems I mentioned bother me a bit. I will update my review if I find the culprit to the latency problem.

    • sehtadmin


      Thanks for your review. Yes the battery box can be a bit stiff when new and maybe we should look into this but this is the first comment on this but rest assured we will look into it.

      Squelch is entirely down to the intercom of the aircraft and not something that is adjustable on the headset. When you set the squelch you are setting the ambient voltage present from the microphone, once you then speak you increase the voltage sent by the microphone and this then pushes the voltage over the preset (squelch level). It is possible that if the mic doesnt detect your voice then indeed the squelch would not operate but also no one else would here you either. The fact that you can be heard indicates that the mic is working correctly.

      When I fly I sometimes also have the problem you mention and it is invariably down to the squelch control on the aircraft has some hysteresis but this is easily overcome by speaking your first word louder and more commanding than usual.

      Hope this helps

  3. szcsongor (verified owner)

    Here comes my second review, because couldn’t find an option to edit the first one. (feel free to merge this into the first one or delete that :))
    So my two problems are partly solved:
    – The cover on the plastic control box somehow fixed itself and opens now as it should, without the need for disassembling the whole thing. Now the battery change can be done in 5 seconds.
    – The audio problems where there was a delay in hearing myself back through the headset when I spoke into the mic seem to have been almost gone. After doing some flights and trying the headset in different airplanes I played a bit with the built-in squelch on their audio panel and it was possible to reduce the latency to a satisfying level. There is still sometimes a slight delay but I can live with it.

    5 star product, easily the best headset on the market for its price.

    • sehtadmin


      thanks for your comments. It is possible that the microphone is the wrong way round as it can be rotated on the boom. try turning it and ensuring the the flat is to yor mouth. Also positioning the mic slightly different will have a big effect. You have to remember that when speaking you need to inform the intercom you are and the only way it knows is by the mic output going beyond a certain level, this can be accelerated by extenuating your first syllable. Another issue to aware of when using ANR sets your brain is fooled into thinking the outside noise is a lot lower than it actually is and as a result you automatically tend to speak lower, this obviously doesnt help when it comes to overcoming the squelch threshold so you do need to subconciously train yourself into using the headset correctly.


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