Electric guitar pedal

Features:
The true bypass design minimizes tone loss.
Aluminum alloy shell with paint.
Turn your pitch into an octave, and also add some ambiguity!
The middle toggle switch allows you to control the tone.
Observe what happens when you put the fluff on the stamp and double the frequency.
Description:
Input impedance: 500K ohm
Output impedance: 10K ohm
Working current: 4mA
Power supply: 6F22 9V battery / 9V DC adapter (including ni)
specification:
green
Material: aluminum alloy