Main unit, box, instruction manual, etc. Operation confirmed with power adapter and batteries. (Batteries and adapter are not included in the items for sale) It's a beautiful item with no noticeable scratches! *Since it is also listed elsewhere, it may be sold out due to a discrepancy. Excerpt from the web below. Main Specifications Sampling Frequency: 44.1 kHz AD Conversion: 24-bit + AF method *AF method (Adaptive Focus method) is Roland/BOSS's unique method that dramatically improves the SN ratio of the AD converter. DA Conversion: 24-bit Effects: 108 types Memory: 99 (user) + 99 (preset) Phrase Loop: 32 seconds Nominal Input Level: INPUT: -10dBu, AUX IN: -20dBu Maximum Input Level: INPUT: +7dBu, AUX IN: 0dBu Input Impedance: INPUT: 1MΩ, AUX IN: 27kΩ Nominal Output Level: OUTPUT (L/MONO, R): -10dBu, PHONES: -10dBu Output Impedance: OUTPUT (L/MONO, R): 1kΩ, PHONES: 44Ω Recommended Load Impedance: OUTPUT (L/MONO, R): 10kΩ or more, PHONES: 44Ω or more Connectors: INPUT jack, OUTPUT (L/MONO, R) jacks: Standard type CTL2, 3/EXP2 jack: TRS standard type AUX IN jack: Stereo mini type USB COMPUTER jack: USB type B DC IN jack Power Supply: Alkaline batteries (AA) x 4, AC adapter (PSA-100 recommended) Current consumption 200 mA Battery life during continuous use Alkaline batteries: Approximately 7 hours *Varies depending on usage conditions. ■Size: 305 x 152 x 56mm ■Weight: 1.3kg Guitar Effects Processor GT-1 Brand: BOSS (Musical instruments, equipment) Type of guitar effector: Multi-effector