Boss SYB-5 Bass Synthesizer Pedal (Review By Gökhan Yumuşakdemir) - YouTube
Boss SYB-5 Bass Synthesizer Pedal – Kraft Music
Boss SYB 5 Bass Synthesizer With Roland EV-5 Expression Pedal | #521398741
Amazon.com: BOSS EV-5 Expression Guitar Pedal and M-Audio SP-2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Musical Instruments