This Ibanez Tube Screamer is specifically designed for multi-string guitars. It's an innovative distortion effect pedal with an excellent noise gate, a trim function to change the EDGE depending on the application such as riffs or solos, a mechanism to store the knobs so the markings don't change, and a one-push battery replacement structure that's easier than BOSS pedals. It distorts more than the original TS. Functionality has been confirmed. - Model: SM7 - Brand: Ibanez - Type: Overdrive effect pedal - Controls: DRIVE, LO, EQ, LEVEL - Terminals: IN, OUT - Features: VOID, EDGE, SHARP, SMOOTH Thank you for viewing. We will check the functionality before shipping, but please understand that we cannot be responsible for any issues during or after shipping.