Maxon AD999 Pro Analog Delay Guitar Effects Pedal Input Impedance: 500 kOhmsOutput Impedance: 10 kOhms or lessResidual Noise: -100 dB (IHF-A)Delay Time: 80-900 millisecondsControls: Delay Time, Feedback, Delay LevelSwitch: Bypass/Effect (Mechanical TBS); Multi-delay 3/8, 4/8, 5/8In/Out: Input, Output, Dry OutputIndicator: Bypass/Effect LEDCurrent Consumption: 72 mA / 9 VDCPower Supply: Maxon AC AdaptorDimensions: 4-3/4" W x 2-7/20" H x 6" D (120 mm x 60 mm x 152 mm)Weight: 1.39 lb. (excluding AC Adaptor)Accessories: Maxon AC Adaptor (AC2009)