Since I have purchased these, everyone I talk to either complains that background noise is unbearably loud, or that I sound very distant

This product is horrible has absolutely no noise cancellation no one can even talk to me while I'm driving the vehicle all I hear is background noise and can barely hear

No problems with them disconnecting but the background noise during calls, sounding muffled and far away to my callers was persistent

I've received no complaints about background noise, muffled sounds, or not being able to hear me.

This is with the phone on my desk one foot from the headset with clear access to the headset, and a strong 4G signal from Verizon.