The Super Seek Trem by ZVe is part of their Vexter series, also home to the Super Seek Wah. The Super Seek Trem is an evolution of their Seek Trem pedal, and is essentially a 16-step sequencer of volume pots, which gives you the ability to produce rhythmically complex tremolos. The Super Seek Trem features tap tempo, MIDI tempo control, an expression pedal control, and controls for Speed, Gliss, Steps/Preset, and Tap Div/Delta, amongst others.