The hallmark brass body provides great shielding from the outside and enables a noiseless tones.
"The 4knob Shanks pedal is a collective design from me and the team at Vemuram. It's a 2 transistor fuzz that gives you the head room as well as cleans up when you roll your volume down.. The gain is fuzzy but controllable giving you flexibility over the gain you desire. It took us a while to get this right so enjoy and play on." John Shanks