TC HELICON Harmonizer VOICETONE HARMONY-G XT I purchased this in the past and have only used it about 4 or 5 times. The exterior condition is good. There is some aging on the box due to long-term storage. When you shake the unit, it rattles a little, but there are no issues with its operation. Latest "NaturalPlay" harmony algorithm controlled by guitar performance High-quality reverb & reverb styles inherited from VoiceLive 2, 4 types of doubling FX that provide overdub effects (also applicable to harmony voices) FX presets that support a wide range of music styles, software update/preset backup application "Voice Support" via USB connection Added an adaptive gate function to the "Tone" button, which automatically optimizes the tone of the voice, to suppress microphone input when not singing Tone switch that applies appropriate EQ/compression/de-esser to live vocals with one button, 18 combinations of reverb, delay, and μMod FX applicable to both vocal and guitar inputs