Boss GT-001, desktop multieffect, Premium amp-models and effects from GT-100, COSM amp modelling and multi dimensional processing effects, flexible amp and effect routing with 2 signal channels, USB Audio/MIDI Interface with two internal ports for recordging and reamping, compatible with GT-100 patches, BOSS TONE STUDIO editor/sound library for Mac and Windows and addinional custom patches, XLR mic input with phantom power (special patches for voice and acourstic guitar), Aux-In (mini jack), monophonic Guitar-to-MIDI conversation with the standard guitar input, expression pedal input or up to two footswitches for realtime effect adjustment, USB powerd or with power supply, power supply is included