I am not aware of this - even if it introduces something, my system noise is louder than noise added by electrical interference (my guess).
In rare case such things can happen. Ground loops are especially notorious. Highly inductive, untwisted, unshielded cables, and/or low impedance speaker loads, can also cause noise as well as frequency response anomalies.
Ask me how I know. 
However, you should not be avoiding specific devices because they could introduce audio noise. Typical audio frequencies and impedances are too low for this not to be easy to fix with high-quality shielded cabling, impedance bridging amplifiers, high-quality transformers, etc. At the absolute worst, you could use a Cat6A shielded cable to carry power and fully differential impedance matched audio signal to an amplifier right at the headphones. @mimaximax
In most situations, I have found KabelDirekt products to be sufficiently high quality.
Also, I have found this audio transformer well balanced with a flat frequency response for eliminating a ground loop from one computer’s line out to another’s line in.
A troublesome USB powered bluetooth transmitter might also need an isolated PSU to eliminate noise from the USB ground plane. This unit works quite well - IIRC it uses a power module from the same series I would consider for ECG/EMG/EEG applications where noise and safety isolation are imperative considerations.
Troublesome EMI sources could be eliminated by covering them with copper tape, as long as that copper is connected to a local electrical ground somewhere.
https://www.amazon.com/Single-Sided-Conductive-Shielding-Grounding-Soldering/dp/B083SH1556/
Failing that, these are the best affordable cables for power/signal.
Which I would use to transfer power/signal to an OpAmp with the GenericIO portion of my PatchRap standard…
##GenericIO
T568A
3 / 1 - Vcc
3 \ 2 - sGnd
2 - 3 - Vmid (midpoint ground)
1 / 4 - SigLeft-/sGND
1 \ 5 - SigLeft+
2 - 6 - sGND
4 / 7 - SigRight+
4 \ 8 - SigRight-/sGND
With Cat6A S/FTP cabling, and following that standard, in fully differential mode, you could probably drive nearby wires with megaamps of current at 10kHz or 10MHz - enough to melt any metal in the vicinity - and not hear ‘EMI’ induced on the wire. Even the parasitic rectifiers in the amplifier would not receive anything. Of course, at such extremes you could just as well use optical SPDIF, bluetooth transmitter, etc.
Point being, that it is absolutely unreasonable to make compromises in actuator choice for sim rigs due to possible EMI concerns. The solution is better wiring and maybe some adhesive copper foil shielding.
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I already bought these for my StarVR One:
They actually sound pretty damn good for their price!
I also ended up buying these headphones for when I’m playing flat games on PC, although they would sound really good with the headset too:
https://www.amazon.ca/gp/product/B07X485BS8/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
Sorry but suggesting 15 bucks earphones for a high end product made me doubting overall credibility seriously, that’s just insane. Sorry but…sorry
Decent in-ear earbuds can be a lot cheaper than decent over-the-ear headphones, and were widely available/affordable many years sooner. The downside is they can get uncomfortable after a few hours.
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listen there is bang for the buck, reasonable, ambitioned, audiophile and „need medical prescription for serious hearing defects“
omg, can‘t believe this but…hey go for it.
Just because I spent a lot of money for the StarVR One, doesn’t mean I want to spend hundreds more on the best audio solution. I’m not a huge audiophile and I wanted decent enough earphones because they are much lighter than wearing over-ear headphones. This headset is 450g, so I didn’t want to add unnecessary weight to my head.
no don‘t get me wrong. there are great bang for the buck out there but even if 15 bucks headphones were kissed by jesus they still are garbage. There are great headphones in the 50 to 100 bucks range. no need to spend more if you‘re not after the extra. But you may like something that is at least sufficient.
Fortunately, I am not taking a drink for every buzzword you chalk up. About ten years ago, those earbuds were second best to a set of ~$1k multiple balanced armature studio monitors. Consumer headsets have improved a lot since then, due to the OEM market having plenty of various sized drivers with near flat frequency response in their datasheets.
If you actually know how these things are designed, using modern tools, then you know it is actually quite feasible with negligible manufacturing cost to make drivers with a flat frequency response. All that is required these days is the will to browse some datasheets for something with decent specs. Hint: I have actually been involved in that process.
Meanwhile, I am more skeptical of the Mpow headset. I can’t get a frequency response graph for it, and other products from the same company show +/-6dB before even getting past 5kHz, with some really sharp ripples after that. As for weight, 254g is not exactly lightweight.
Truth be told though, very few headsets today have the +/-15db ripples of things available ten years ago. For VR, better than typical frequency response doesn’t matter much. Used to be that listening to music could be downright awful though, with entire piano notes essentially lost in the noise, or stringed instruments sounding off specific notes rather than a continuous swept tone.
Many loudspeakers out there have a ways to catch up though. There is a particular Creative set worth considering, but not much else.
Keep in mind most microphones have a flat frequency response, and Pimax has a usable solution built-in here, so that is not a compelling feature IMO.
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No buzzwords on my end till now 
I try to keep it clean. As I said I appreciate your expertise in many things but me going in and out in many well established studios and owning a studio myself (mostly for pre-production though) I probably know what I‘m talking of. Otherwise I would have starved by death by now since beeing in the music business is nothing that parents would suggest their kids to do for a living.
15$ headphones are BS. Yes, they may be good BS, but still. Things have a price which doesn’t mean it needs to be expensive.
No one would buy let‘s say a tire for a car for 1$. Logic implies that there simply must be something wrong with it. And to suggest to put a 1$ tire on a mercedes makes it absurd, at least to me and any other professional that I know personally.
Every item has a reasonable limit, in this case 15$ is way below that limit. I have tested hundreds of studio monitors, pa systems and headphones. I can‘t take you serious at least on that matter.
I‘d have a drink with you, also without buzzwords
You’re probably part of the reason so many decent headsets are overpriced. 
I think ‘BS’ for these earbuds is way too harsh.
These aren’t tires with significant raw materials prices. Earbuds are are stamped sheet metal, stamped plastic diaphragms, magnet wire coils, and least of all, plastic enclosures. If the shapes were well chosen, the frequency response can be quite flat, for a product that requires insignificant metal and three simple custom tools.
Right now I am listening to a set of ~$200 BOSE noise cancelling headphones. They sound absolutely terrible compared to my $15 earbuds, with notable sharp resonances and dropping off entirely around 12kHz. They are more comfortable sometimes though. Also much more comfortable than typical ear protection devices…
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Think we need to agree to disagree.
15$ earphones are an as bad decision as buying bose, lol.
Bose products are not bad but 2-3x times the price what they are worth.
That comparison is really bad and actually proves my point, since you actually think I may suggest Bose to anyone.
But hey, buy Beats
I don’t think highly of Bose or Beats headsets, actually.
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Just in case, I know they come with a considerable price tag and it is for sure not for everyone.
I own UE11 and yes, they are way overpriced.
Got them endorsed though…
You can get the same quality for the 3rdish of the price:
https://www.fischer-amps.de/fischer-amps_universal-fit-in-ears.html
you can switch to english on top of the page.
These are a steal IF somebody is in the audiophile group (and not Bose/Beats PricetagwannabeIhavemoneybutnoearsphile)
But still, decent headphones start from 50-100 bucks minimum.
Not exactly flat. And for that, they seem to be in the $300 range.
By the way, modern bluetooth chipsets have the onboard DSP capability to do many-band parametric EQ. These can get especially close to absolutely flat.
if you like the senn’s, the HD6XX (massdrop version of the HD650) comes up for sale ~$200 from time to time, in fact they are on their for $220 right now, considering the HD650 is normally $400 near me, thats a great price for a really good set of cans
Agreed, the 6xx are an insane bang for the buck. But it‘s hard to catch some at the right time. I feel that they are somewhat different to my 650 but I can‘t put a finger on.
Considering they come at half the price they are actually a no brainer.
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Love my old Sennheiser HD25 Capsules on my Vive Strap.
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around 490€ for the premium ones.
Keep in mind we’re talking 3 way and 4 drivers.
I personally hate to squeeze all frequencies through one single speaker, no matter where.
But from 1 way to 2 way feels like a bigger jump than from 2 way to 3 way.
I managed to get a cheap koax designed speakers in my (cheap and old) car. it made a big difference.
Loudspeakers benefit much more from separate drivers than earbuds. Seriously, who cares how many drivers if low frequency phase and high frequency response are reasonable.