This unit is functioning, has no accessory's, uses 2 AAA batterys, has plug on the side for PC link, not included. Casio Business Organizer Scheduling System "BOSS" Model SF-5790sy 256kb this is the closest manual that I could find http://ftp.casio.co.jp/pub/world_manual/cal/en/SF5580_5780_5980_E.pdf http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&ih=014&sspagename=STRK%3AMESE% 3AIT&viewitem=&item=330072710567&rd=1&rd=1