Dunlop M305G1 MXR Tremolo PedalThis return of the tremolo effect to the MXR line combines a full historical range of masterfully tuned tremolo styles with a host of features to satisfy the performance needs of todays discerning players. The MXR Tremolos six tremolo waveforms represent classic and iconic sources of the effect as well as new sounds concocted by the MXR design team. First, the MXR style recreates the organic sound and pulse of the much beloved M159 MXR Stereo Tremolo.