Peterson VC-S2 StroboStomp2 Virtual Strobe Tuner/DI Pedal Accuracy to 1/10th of a Cent (30 Times More Accurate than LED / Needle Tuners) 100% True Bypass Switching with Heavy Duty 3PDT Stomp Switch for Silent Tuning Peterson Custom Sweetened Tunings Include: Electric Guitar, Bass, Acoustic, 12-String,Steel Guitar, Dobro and Violin Buzz Feiten Tuning System Open String Offsets Built-in Mute-able Active DI