BOSS VE-20 Vocal Performer Processor Effects Pedal Checked, no issues. Also listed on other sites, so it may be removed without notice if sold. The following is quoted: The VE-20 is a vocal processor that incorporates all the effects ideal for vocal sounds in an all-in-one unit. By simply selecting your favorite sound from 30 types of presets according to genre and style, you can create high-quality and effective vocal sound making. Of course, the effects are optimized specifically for vocals, and you can feel the high quality of the content. There are 12 types of "STANDARD" presets, which use dynamic effects such as delay, reverb, and compressor, which are ideal for genres and musical styles. There are 10 types of "DOUBLE" and "HARMONY" that add thickness and harmony to the voice. There are 8 types of "SFX" that aggressively change the vocal sound, such as distortion and pitch correction. In addition, you can edit the preset effect settings, and a total of 50 types of settings can be saved in the user area to suit your preferences. You can select the effect sound with simple operation by simply turning the knob. The VE-20 is equipped with a full range of input/output terminals that support use on live stages as well as studio work. The input is a combo jack specification of standard phone and XLR terminals. It also supports phantom power, so you can connect and use a condenser microphone that vocalists are particular about. The output is stereo specification with XLR terminals. It is also equipped with a headphone terminal that can be used as a stereo line out, so it can be used in various connection methods. In addition, the VE-20 uses a dual power supply system with dry batteries and an AC adapter. It can be used with peace of mind even in situations where it is difficult to secure a power supply, such as street live performances.