Lot of vintage speech synthesizer related items for the Texas Instruments TI-99/4A computer. Synthesizer is excellent and clean without much wear and still has instructions booklet. Parsec still has booklet and box (cartridge label started to peel) and Superfly still has instructions book. These 2 cartridges have sound features that work with the speech synthesizer box! Synth and games were played and worked fine a year ago, these came from a clean estate where computer items were kept in a last-known-working condition. Labels and instructions manuals are all originals.