Do you play like you mean it, but need a little something extra to make your guitar sing? Here"s a one-pedal ticket to more expressive keyboard playing: Boss"s FV-500H volume/expression pedal. Use it as a volume pedal to swell and sculpt sounds and dynamics, or use the FV-500H"s expression output to take further control of your guitar rig. Heck, you can use it for both at the same time! You even get a built-in tuner output. Talk about professional!