First, let me say the build quality is pretty darn good.One knock is the end that plugs into the headset (Bose QC25) is a little shorter than the stock so you have to ensure it's set by pushing on the cable vice the connector (can't speak for the other models). One star for that.Also, end that plugs into your device is fatter due to the screw type connection for the adapter plug. It may or may not fit into your iPhone/cell phone with its case on.
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