Rhythm machine with a variety of rhythm patterns. ZOOM - Model Name: RhythmTrak 234 - Included: Power adapter, connection cable, instruction manual - Functions: Rhythm patterns, track function, sound selection - Interface: Headphone jack, line output - Color: Black ☆As shown in the photos, the main unit and accessories are included. Main unit, AC adapter, operation manual, connection cables (long, short) ☆Sound output has been confirmed. ★ Will ship within 24 hours of purchase. Thank you for your interest.