In the words of EarthQuaker Devices:

We proudly present the new and improved Spatial Delivery Envelope Filter! We took the alreadycosmic, originalSpatial Deliveryand added six available preset slots for you to store your preferred settingswhether they be dissonant sweeps, rhythmic auto-wah frequencies,oscillating robot gibberishor honestly whateverfiltered frequency funyou want. Even theexpression jack assignment can be saved and recalled in any of the slotsso that the signature sounds you dial in are readily available with a quick tap of the switch.Save your settings confidently on the go thanks to the two modes indicated by the LEDSave/Recallswitch.