Boss DS-2
Input Impedance1 M ohmsOutput Impedance10 k ohms or greaterEquivalent Input Noise Level120 dBu or less (IHF-A, Typ.)ConnectorsINPUT Jack, OUTPUT Jack, REMOTE Jack, AC Adaptor JackPower SupplyDC 9 V: Dry Battery 9 V type, AC AdaptorCurrent Draw12 mA (DC 9 V)AccessoriesDry Battery 9 V type (6F22/9 V)OptionAC Adaptor (PSA-Series)