My only issue with (DC) ENR is that I get a low frequency warble, probably
due to a poor seal around the earpiece of my glasses.

I had that same problem, give them a call.


What was your solution? I called them, they suggested and sent me (free) the
ear seals that go around the eyeglass earpieces and are supposed to improve the
seal. They did, a bit, but were fussy and I ended up just living with the
warble.

What happened with yours?

Jose


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