Looking for smooth volume control in your guitar rig This used BOSS FV-50H Volume Pedal is in good condition and ready to deliver precise, high-impedance performance for guitars and other high-impedance instruments. Designed for placement before your amp or effects chain, the FV-50H features a durable, road-ready chassis, noise-free operation, and a tuner out jack for easy tuning on the fly. Its lightweight design and smooth action make it ideal for both studio and stage, offering the trusted reliability BOSS is known for.