whats the thing the guy uses like a ring? also where do i buy one? and any idea of how this works? or how can i make something similar(i doubt i can find one of these in my country)
all i know is i have see the same ring in a namm show vid but it was low quality so i did not noticed the sounds where from the ring-like-thing
My Gear

Squier VM p-bass(i chosed it over a fender!!!) with quarter pounder and gotoh 201!!
fender MIM P bass
epiphone SG 400