Old Blood Noise Endeavors Whitecap Dual Tremolo, Effect Pedal for Electric Guitar, Analogue and digital tremolos in one pedal, Analogue from slow to almost Ring-Mod fast, Digital offers 5 waveforms and Tap Tempo control, Ramp Mode - Increase or decrease the speed by holding the Tap Footswitch, Series / Parallel to the interaction of independent tremolos, Controls: Rate 1, Depth 1, Volume 1, Waveform, Rate 2, Depth 2, Volume 2, Switches: Series / Parallel, Subdivision, LED: Effect On, Tempo 1, Tempo 2, Foot switch: Effect Bypass, Tap Tempo / Ramp, Input: 6.3 mm jack, Output: 6.3 mm jack, Ext Tap: 6.3 mm jack, AC adapter connector: Hollow plug socket 5.5 x 2.1 mm, negative pole inside, Current consumption: 106 mA, Powered by 9 V DC power adapter (not included, suitable power adapter: Article no. #409939#), Dimensions (W x D x H): 92 x 118 x 60 mm, Weight: 400 g, Made in USA@+*Note: * Battery operation is not supported.@+@+