Ernie Ball on Twitter: "Our favorite addition to any pedalboard, the Expression Tremolo pedal allows you to unlock a virtually limitless tonal palette. Trusted on stage by Adam Jones, guitarist of @Tool.
Used Ernie Ball Expression Tremolo Effect Pedal | Guitar Center
BRAND NEW Ernie Ball Expression Tremolo Pedal! | GAK.co.uk
Ernie Ball Expression Series Tremolo Pedal | Sweetwater