Purchased for use with headsets and headphones to protect their connectors from deformation and damage. So far they're working great. I chose them with a cable instead of a simple little adapter to reduce the horizontal length of the ports where they connect to the phone. This further reduces the load on the headset jacks. They don't interfere with the controls on the headset cords (call answer/media controls/volume control) at all. They do not affect the sound quality in any way.
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