Sensitivity knob moves to easy...

I'm sure somebody has addressed this before but I can't seemed to find it. My headphone jack cord goes right across the sensitivity knob and ends up moving it, I have to constantly check it. I have put the cord under the handle but it the shortens the cord and tugs on the phones. Can I put some kind of "O" ring under the knob so it doesn't move so easy?
Thanks!
Aaron

I just wrap a rubber band around it

LowBoy

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Sounds like a good idea, thanks
Aaron

I would recommend going to a hardware store and purchasing a variety of thin washers and try them..Remember you want to snug it not overly tighten as could cause premature wear I would think..

Yes, a rubber band that 'snaps' into place under the knob. Use a thin black one..... if you do not want it to be noticable.