Thank you for viewing. This listing is for the EF-303 unit, AC adapter, and instruction manual. The silver EF-303 boasts a variety of effect functions. - Model Name: EF-303 - Brand Name: Roland - Color: Silver - Connection Terminals: Output terminals, microphone terminal, headphone terminal - Power: AC adapter included - Effect Functions: Filter, Flanger, Delay, Reverb While there is some minor deterioration and signs of use on the buttons and knobs, it functions without any problems. There are no issues with the buttons or knobs not responding. The instruction manual will also be shipped with the unit. The original box is not included, so it will be shipped with bubble wrap and a separate box. We aim to ship within 24 hours of the transaction being initiated.