Donner Alchemy Guitar Effect Pedal True Bypass 8 Modulation Effects Donner alchemy is the all-in-one box that includes all types of modulation effect that the players have wanted for many years 8 Modulation effects,chorus, flanger, phaser, tremolo, rotary, pan, u-vibe and vibrator Tone lock function and one preset save/recall New generation 32-bit dsp, high performance 24-bit 44.1 Khz ad/da convert Input/output sensing circuit select optimized routing automatically