The Franklin MWD-460 Merriam Webster Dictionary and Thesaurus gives you immediate access to over 80,000 words and 274,000 definitions. It is lightweight and compact; it completely eliminates the need to lug around heavy dictionaries. In addition to its thousands of definitions, the dictionary also features a spelling corrector, SAT word list, clock, a basic calculator, and can distinguish between easily confused words. It even enables you to compile your favorite words into customized lists, making word studying much easier. It also plays nine different fun games which will help you build vocabulary and spelling skills. It is the portable dictionary that cuts down on your lookup time, and helps you avoid picking the wrong words. Includes batteries Battery Type 2 x CR-2032.