Viscount midi bass pedal, radial concave 30 tone pedal, Midi Channel Programmable 1-16, Transmission Program Change, Transmission of Control Change 7 (volume) or 11(expression) on pedals, 2 Expression Pedals with independent programmable midi channel, Connections Midi Input 1 - Midi Input 2 - Midi Out - Expression Pedal 1 - Expression Pedal 2, Status indication with 2 Led, Dimensions : lenght: 1.174,00 mm, deepth (with pedals) : 1.087,00 mm, deepth (without pedals) : 1013,00 mm, heigth (with pedals) : 416,00 mm, height (without pedals): 199,00 mm