Product details:

The Drop is a dedicated polyphonic drop tune pedal that allows to drop tuning from one semitone all the way down to a full octave. Get down-tuned chunk without having to change guitars! The Drop also features a momentary/latching switch. With the switch set to momentary, can turn the Drop into a true performance pedal. Fast trills and roller-coaster pitch dips are at the tip of toes. ControlsEffects Selector Knob - Selects which of the Drop effect settings is used when the effect is active. Momentary On/Off Switch - Selects how the effect footswitch will operate. Setting this switch to "ONwill cause the footswitch to act as a momentary switch (the effect will be enabled or disabled only as long as the footswitch is pressed and held). Setting this switch to "OFFwill cause the footswitch to act as a standard latching on/off switch.