EarthQuaker Devices Hummingbird™ Repeat Percussion tremolo is a killer sounding tremolo modeled on the vintage “repeat percussion” unit and similar to those found in old Valco and Vox amplifiers. This awesome Earthquaker device can deliver a wide array of sounds with everything from classic “50’s style” shimmering tremolo to a synthy, delay-like chop that turns your signal into a burst of short pings and on through to near ring modulation speeds. Simply choosing between modes 1 (slow), 2 (mid-tempo) or 3 (fast) and adjusting the rate and depth controls will unlock new worlds of tone and sound. The Hummingbird has plenty of clean gain on-tap allowing you to either boost or cut the signal using the level control. If the Depth is turned to zero, the Hummingbird will become a JFET clean boost! The Hummingbird is all analog, true bypass and handmade in Akron, Ohio.