Found this gem at an electronics surplus, new in box. Two little adjustable gray transceivers (look like infrared) that plug into the serial port and ADB port for power. Really cool. Offers wireless AppleTalk.

It includes an optional base unit for the transceivers that can be powered by either 3 AA batteries, or an AC adapter, presumable to save power on your PowerBook.

Also contains a free copy of PowerMerge synchronization software for Macintosh for synching multiple PowerBooks.

Includes a CD-ROM with Marathon and a demo of Pathways into Darkness.