This equipment has been stored for a long time. While it shows signs of use, I was able to play back songs I recorded in the past. There are no option boards, so please add them as you like. I haven't thoroughly checked all functions, so please purchase it understanding that it is being sold as junk. The internal battery needs to be replaced. I will ship it in the original box, but the box has external damage, so please consider it for shipping purposes only. Thank you. - Model: Yamaha AW4416 - Type: Digital Audio Workstation - Number of Tracks: 16 tracks - Features: Automation, Sampling - Display: Color Display - Controls: Fader Control - Connectors: Various input/output terminals - Operation Buttons: Multifunction buttons