Boss Volume Pedal, FV-50L

2 Inputs + 2 Outputs (jack)
Adjustable minimal volume
Tuner Out for guitars
Dual inputs and outputs allow stereo keyboards to operate at their best; a Minimum Volume knob gives users at their disposal the control to preset minimum volume. Additionally, the FV 50 L also functions very well as an expression pedal. 
Thanks to its low-impedance design, it is also a great choice for guitarists who want to control the master volume with a pedal in the effects loop. 
As regards this feature in particular, normal guitar volume pedals often do not function properly, but the FV 50L resolves this task with flying colours! 
Another very convenient feature is the Tuner Out; this enables the user via to tune silently a connected tuner! / Dimensions: 8 x 5 x 20 cm / Weight: 0.45 kg