J. Rockett Audio Designs APE Preamp/Boost, Effects Pedal for Electric Guitar, Preamp/Boost, Extremely versatile use as a preamp/boost or as an extension to existing delay pedals, Flexible routing options enable different applications, In series in front of a delay, the pedal works as a coloring preamp, boost and drive, With a delay in the loop, the pedal takes control of repeats, mix and gain, Internal operation with 22.5 V for maximum headroom, True bypass, Controls: Mix, Repeats, Rec, On/Off bypass footswitch, Loop footswitch, Status LEDs, Metal housing, 6.3 mm Mono jack input/output, 6.3 mm Mono send and return, Operates via optional 9V DC power supply, 2.1 x 5.5 mm coaxial power connector, negative polarity (-) inside (not included), Power consumption: 39 mA, Dimensions (L x W x H): 108 x 76 x 50 mm, Weight: 492 g@+*Note:* Battery operation not supported@+@+