Diezel VH4 Pedal, Effect Pedal, Overdrive / Pre-Amp, Provides an authentic representation of the legendary Diezel VH4, Completely analogue, Can be used as either an overdrive or as a standalone preamp to feed into your amps power section, Two outputs to connect to the front of a guitar amplifier or for a connection to a line-level power amp or power section of your amp via the Effects Return, Controllers: Gain, Bass, Middle, Treble, Deep, Presence & Master, True bypass, Can be operated with voltages between 12 - 18 V DC (no battery operation possible), Dimensions: (W x D x H): 114 x 165 x 51 mm, Made in USA, Incl. 12 V DC power supply and 18 V power supply cable (for use with 2 electrically isolated 9 V DC outputs)