Thanks for posting with such detail. I am so sorry to hear about that. We might have covered this in another post that you can see here.
I would recommend looking at that post.
Tony G - Community Support
Thank you for all the posts.
We completely understand and have passed all of your feedback along to the development team and are happy to see you have a lot of passion for Sleepbuds.
We're continuing to develop and improve the Sleepbuds through a timetable, and we're not able to provide details, but I can assure you as soon as we have information on additional updates and features we will communicate this clearly to the community.
Joel - Community Support
From experience, if you are in the U.S., the warranty exchange process is really fast.
Are you using your sleepbuds in phone-free mode and taking them out of the charging case at exactly the same time? If so, in the off chance you are doing that, try taking them out a second apart.
If you are using them as normal, perhaps try in phone free mode and take each sreepbud out with a second offset.
I got good at taking my sleepbuds out at very close to the same time. However, I sometimes noticed some weird and very quiet
variable tonal (distant singing, humming, just tones) sounds.
My theory, (note that I'm able to hear the 18kHz electronic sounds) is that I started perceiving harmonics. Since I figured each sreepbud was pretty much doing exactly the same thing it a loop, that "randomly" offsetting them would disrupt any perceived interactions.
Note:. I totally just picked one second because it was easy and I figured any loop was probably longer than a second.
That is almost certainly what is happening, and it's quite common with repeating sounds. The brain is always trying to make sense of things. I posted several links about this in a thread I created here, but unfortunately a troll decided to destroy any conversation. This is easily googled.