BOSS rhythm machine with pattern creation function. - Model: DR-220A - Brand: BOSS - Type: Rhythm Machine - Functions: Pattern creation, metronome - Display: LCD display - Accessories: Pattern list, simple instruction manual - Condition: Good Thank you for viewing. I purchased this several years ago and used it quite a bit at the time. I checked the operation by inserting AA batteries, and all switches and volume controls work fine, and sound is produced. The main unit has no scratches, and the case has only some dirt and stains. Please understand that this is a used item before purchasing.