This is a dual deck cassette multitracker from Sansui

The left deck has 6 tracks and the right deck is a stereo 2 track for recording mixdown.

Built in reverb and delay, 

2 band eq. 

Mains power lead.

Dolby C switchable on both decks

Dolby B on master deck

Dedicated smpte io

The 6 track deck is high speed and the master deck is normal cassette speed.

Manufacturer recommends chrome tapes for the high speed deck.

https://www.muzines.co.uk/articles/six-appeal/5720

Everything working great and includes a flight case. Has been stored in case.