Lehle D.LOOP SGoS Programmable looper and switcher. Do you want to switch between 2 effects loop easily? The Lehle D.Loop SGoS is your choice! It has highend gold-plated-contact relays and 2 true-bypass loops, when you're not using it, the the sound does not change. But go ahead and give the D.Loop SGoS a stomp, and you can bring in any series of effects you want. Other great feature is that stompbox has full MIDI capability.