9-button Foot Controller for Firehawk 1500 with Expression Pedal, USB, Additional EXP Pedal Jack, and Tap Tempo Full Control of Your Line 6 Gear The Line 6 FBV 3 footboard is the ideal way to take full control of your Line 6 guitar amplifiers. Its 9-button interface is color coordinated to offer intuitive use and easy recall of your favorite sounds and presets. An additional jack allows for an additional expression pedal. You'll be able to monitor all of your changes via a 20-digit display. And the FBV 3 foot controller is built from steel to be tour ready and very rugged. The Line 6 FBV 3 floor controller is the ideal way to unlock the full potential of your Line 6 amplifiers.