The Joyo JF-38 features classic A circuitry. A simple turn of the dial gives you up to a 35dB of searing boost. Supports a maximum input of 18V DC voltage. True bypass design.

Joyo JF-38 Roll Boost Guitar Effects Pedal Features:

• True bypass design minimizes tone loss
• Aluminum alloy casing with stoving varnish finish
• Gain control
  
• Dimensions: 11.8(L)X6.4(H)X3.8(W)cm
• Power: 9V Battery / DC 9V adapter (not included)