Used Rocktron Surf

It is a vintage-inspired pedal, often associated with achieving the classic tremolo sounds of the 1960s, which are a signature component of the "surf rock" genre

Rate / Speed Adjusts the speed of the tremolo effect (how fast the volume pulsates).Tremolo

DepthAdjusts the intensity of the tremolo (how much the volume is modulated, from subtle to a hard chop).Tremolo

WaveSelects the wave shape of the tremolo, usually from a soft sine wave to a sharper square wave. (Some versions may have separate outputs instead of a knob for the wave shape).Tremolo

CompressionControls the amount of compression applied to the signal, increasing sustain and evening out the dynamics.Compression

HUSHControls the proprietary noise reduction circuit, helping to eliminate hum and hiss, especially at high-gain settings or with the tremolo engaged.Noise Gate

EnhanceOften functions as a tone control, allowing you to dial in extra high frequencies to compensate for any perceived tone loss.Tone/Enhancement