Line 6’s FBV Express MKII Guitar Footswitch offers all the classic advantages you expect from a Line 6 foot controller, including rock-solid channel switches, a rugged wah/volume pedal and a chromatic tuner display but it’s also full of surprises. The steel footswitches are built for constant stomping. They make it easy to store and select four channel presets, to synchronize time-based effects with Tap Tempo, and to activate the chromatic tuner. The burly, full-sized volume/wah pedal feels solid under your foot and features plenty of grip. Clicking the toe switch toggles between volume and wah control. EC.