Hummingbird Repeat Percussions Tremolo The Hummingbird is, at heart, a hard and choppy tremolo reminiscent of old valco or vox amps. What comes out is more akin to pinging, vintage synth-style oscillations. Its core is based on the old Vox Repeat Percussion with several unique updates to reduce noise, enhance the “chop” and add more control. It can create everything from ring mod-like octaves, slow pulses, ping pong delay-like stutters, light blipping through machine gun stutter tremolo and beyond! Add some dirt and it absolutely KILLS! The Hummingbird is all analog, true bypass and handmade one at a time on a cloud in Akron, Ohio. Hummingbird Repeat Percussions Tremolo Hummingbird Repeat Percussions Tremolo View larger Measures: 4.37″ X 2.37″ X 1.75″ with knobs. Side mount jacks. Power Requirements A standard 9 volt DC power supply intended for musical instruments with a negative center 2.1mm barrel. We strongly recommend a high quality power supply with isolated outputs and good filtering to avoid unwanted noise. Will also run off a 9v battery for you olde tymee types. Current Draw is 3ma. Warranty EarthQuaker Devices will repair or replace any defective device for the life of the product. Warranty does not apply to the enclosure, graphics, knobs, hardware or any devices that are deliberately destroyed or modified by anyone other than EarthQuaker Devices. Hummingbird Repeat Percussions Tremolo View larger Controls Depth: Controls amount of modulation from barely there to full signal chop at full bore.Rate: Controls the speed of the LFO. Clockwise for faster, counterclockwise for slower.Level: Controls the signal input level which ultimately controls the output level. Clockwise for more, counterclockwise for less.Mode: Fast/slow switch for LFO rate. Mode 1 is slow, Mode 2 is fast. They do not overlap.