Similar to the original Harmon wah-wah mute (model B-1, our number 002619), except for two features: (1) this one is constructed entirely of copper, and (2) there are no ribs around the mute body. Made in USA. Weighs .45 lbs (.20kg). -cdp
The Harmon Swingmaster Wow-Wow mute. Produces a dark smoky jazz sound. Perfect Harmon sound for big band or swing band performances. Look-alikes do not sound alike. Copper wow wow mute with tube and cup. - the manufacturer