Electro-Harmonix Small Clone EH 4600 Full-Chorus. The appearance is not in good condition, with scratches and rust. However, operation has been confirmed with a 9V battery and AC adapter. As far as I can tell in my environment, there are no particular problems such as scratchiness or noise. It sounds great. No box or instruction manual. Please refrain from purchasing if you are looking for perfection, as this is a used item. We are looking forward to your purchase if you understand. Electro-Harmonix Small Clone The following is a quote from Soundhouse's product introduction article: ■ Guitar Effects Pedal ■ Chorus ■ Controls: Depth switch, Rate, ON/OFF switch ■ Power: 9V battery or DC9V universal power adapter ■ Dimensions: 86W x 70H x 133Dmm ～From the manufacturer's website～ ■ Kurt Cobain of Nirvana's favorite. It's commonplace now, but back then, most people didn't even understand the meaning of the word "clone." The good quality chorus sound, which sounds like a clone and overlaps, was likened to a "clone," and it was named over 15 years ago. The very delicate and clear sound cannot be obtained with other models. The two-stage full chorus preset by the excellent sound engineer D. Cacklow matches perfectly with any music. Thank you for viewing.