Czech-English-Czech 400,000 words Czech-German-Czech 450,000 words Czech-English-Czech (Technical) 300,000 words Czech-English Phrase Book 6,300 words Talking - Real Human Voice - ENGLISH Pronounces all English sentences and expressions in natural REAL HUMAN VOICE. Hundreds of useful sentences arranged by different topics: general conversation, airports and flying, ground transportation, hotel, dining, phone and mail, money and shopping, recreation, medical, emergencies. Incorporates both British and American Wording, Phone and address book, Calendar, Appointment book, Calculator, International time, Display 20 Character x 4 lines, 2-4 Mbytes ROM, 32KB RAM Adjustable screen contrast, Volume control, Earphone jack Automatic power shut-off. 3 x AAA batteries. Size (mm) 140x70x20, (in) / 5.5"x3"x.75"