Product Detail Database of over 1,160,000 words. Bi-directional functionality allows users to type in English or Russian using the bilingual keyboard with instant reverse translations available at a push of a button. All new re-designed word lists now allow for more terms in Business, Financial, Oil, Law, Medical, Telecommunications, and Computers. 14,000 of the most commonly used phrases are at your fingertips. Just click the "Say" button and it will be pronounced instantly. You can even listen, memorize, and try it yourself to work on your own pronunciation. ER550Pro is built on a special SD compatible platform that allows you to add more languages to it via SD Cards. . The "Ectaco ER550Pro Partner Professional English Russian Talking Electronic Dictionary & Audio PhraseBook" is best product for you. We recommended Ectaco ER550Pro Partner Professional English Russian Talking Electronic Dictionary & Audio PhraseBook