Yamaha VSS-30 PortaSound Voice Sampler Vintage Keyboard Box Manual

Vintage Yamaha VSS-30 PortaSound keyboard. Partially peeled red sticker on the box front has a date of 1987. Includes original box, AC adapter, and product manual/paperwork. Keyboard has been tested with AC adapter and with 5 new AA batteries and works with both power sources. Batteries will not be included for shipping safety purposes. I am not certain if the AC adapter is original to the keyboard. Original box has significant wear including tears, tape damage, and creasing. Original instruction manual/paperwork has some staining and creasing. Please see all photos. 18 1/4" x 7" x 2" 32 keys