The Vox V847 Wah Wah Pedal is based on the specifications of the iconic Wah pedal from the 1960's. Players can once again achieve those retro funk tones that inspired so many guitarists in the last 40 years. 
The V847 Wah-Wah pedal has specifications based on the original pedal developed by VOX in the '60s. This Wah-Wah pedal offers guitarists the same legendary tone, along with AC power capability and a buffered input jack for preserving the unprocessed guitar tone when the pedal is not engaged. The pedal's inductor fits closer in to the original VOX wah inductors, for improved dynamics and tone.
Input/Output jacks: INST jack, AMP jack, DC i/p jack.
Power supply: One 9V DC battery 6F22(S-006P)
Power consumption: 540uA @ 9VDC
Battery life for continuous use: approximately >100 hours with manganese battery (will vary depending on conditions)
Dimensions:
Width: 102 mm
Depth: 252 mm
Height: 75 mm (including rubber feet, pedal in lowest postion)
Weight: 1673g (including battery)
Included Accessories: Vinyl carry bag