Joral Bubble mutes are an update to the classic Harmon wa-wa design. Their slightly heavier weight and larger resonating chamber allows a full, richer tone and additional projection compared to the Harmon. For the mute aficionado, there is room for both in your arsenal.
Copper this copper version is weightier and darker sounding - very satisfying for even the most smokey jazz club.
The unique bubble shape seems to help this wah-wah mute have fewer intonation problems than other models which tend to play somewhat sharp.