Described by some people as a vintage classic, analogue drum machine, these were produced by Roland between 1981-1984. I have owned it since 1985 and it has had very little use. It is in excellent original condition and fully operational. There is no noise from any of the components and it comes with the soft case, original operating instruction book and a book of "patterns" written by Rene-Pierre Bardet. It does not have a mains adapter but it works perfectly using dry cells and is not "battery hungry". These can fetch silly prices, one on Ebay at the moment is up for over £900. You will have to search long and hard to find a better one than this.