Specifications: Nominal Input Level -2dBu Input Impedance M ohms Nominal Output Level -2dBu Output Impedance k ohms Recommended Load Impedance 1k ohms or greater Residual Noise Level -9dBu (IHF-A, Typ.) Connectors GUITAR IN Jack, BASS IN Jack, OUTPUT Jack, EXP/CTL Jack, AC Adaptor Jack (DC V) Power Supply DC V: Dry Battery V type (6F22/V), AC Adaptor Current Draw 5mA (DC V) Accessories Dry Battery V type (6F22/V) Options AC Adaptor (PSA-Series), Expression Pedal (Roland EV-5), Footswitch (FS-5U) Size and Weight ( incl. battery ) Wide 7mm 2-7/inches Depe 12mm 5-1/inches Height 5mm 2-3/inches Weight 0.kg lbs. 1oz. * dBu = 0.77Vrms * The specifications are subject to change wieout notice.