Works great, has been used on the road. Featuring a die-hard chassis, Bucket Brigade Driver chip and independent chorus/vibrato effects, the Boss CE-1 Chorus Ensemble provides the endless warm, analog effect musicians have come to covet. Created in 1976 when Roland founded Boss and viewed as one of the progenitors of the chorus/vibrato effect, the CE-1 is a timeless original ideal for guitar, bass or keys.