BOSS FV-30H Volume Pedal, Tuner Out Jack.
A compact foot volume pedal that has been specially created for saving space on your pedalboard while maintaining the trusted BOSS standard for sound quality, reliability, and durability. These pedals are 100-percent professional grade, aluminum die-cast units, and feature smooth pivot action that supports subtle changes in volume control.
• A high-impedance pedal (with dedicated tuner output) that's best for connecting directly to electric guitar or bass
• Space-saving volume pedals with rugged aluminum die-cast body
• Silky feel with smooth pivot for maximum control