Boss OC-2 Octaver

The Boss OC-2 Octaver is an octave divider effects pedal.

Sting used this pedal frequently during the early 90s to provide octave effects on his bass, in both live and studio contexts. It appears on The Soul Cages and Ten Summoner's Tales in places. For example, "If I Ever Lose My Faith In You" has an Octave pedal in the verses.

Source

 * Tracking sheet photo for "If I Ever Lose My Faith In You" in Recording Musician, May 1993
 * Various