this jo ral mute sounds fine. but it literally fell apart after only a couple of months of normal use. the corks holding the mute inside the bell became slowly unstuck, and moved around, eventually becoming so loose the mute began falling out of the trumpet.
the felt material above the corks, loosened and worked its way loose, eventually also falling off.

maybe it's a one off quality control issue, and i got the only bad one, but that's what happened.

Rating: [1 of 5 Stars!]