With its high-impedance design, the light-weight stereo volume pedal is interesting for guitarists who want to control the volume of their guitar (and thus also the distortion of the amp) by the pedal. Practically without sound loss - particularly before the preamp of the amp! The minimum volume knob lets you set the lowest volume as desired. The tuner out enables silent and speedy tuning on stage.

 - Input : 1/4" Jack x 2
 - Output : 1/4" Jack x 2 + Tuner Out (1/4" Jack) x 1
 - Control : Minimum volume
 - Dimensions : 86 x 200 x 54 mm
 - Weight : 400 g
 - Condition : New (Box opened only once for the photo shooting)

https://www.boss.info/us/products/fv-50h_50l/