All Fulltone wah inductors have a custom MuMetal Cover which virtually eliminates all Hum!

このこだわり様は天才マイクフラーならでわ！

the most authentic '60's Vox type inductor , which happens also the quietest...our hand-wound MuMetal shielded Fulltone 500mH inductor. (注/別売りはしておりません）