Spelling correction, over 110,000 words; thesaurus features 500,000 synonyms and antonyms. Confusables® feature helps distinguish commonly confused words. One-line display, on-screen help. It has Data bank stores up to 100 names and numbers with password protection. Eight games plus crossword solver. Currency and metric converter, SAT Word List, calculator and phone list. It requires four AAA batteries (not incl.).