desktop effect unit/modeler, 22 modelling guitaramps and 16 speakermodells, 100 effectmodels with all Line 6 pedals DL4, MM4, FM4 and DM4,new effects looper 48 sec., pitch shifter and automatic harmony, guitarinput 1/4 jack, XLR jack micro input, headphone output, 128 User Programm and 512 Factory ..