-English - Vietnamese, Vietnamese to English, English to English, Vietnamese to Vietnamese - 1 Year Warranty From Manufactory---Built in over 2,000,000 words - LCD 3.5 inches display-- Real American Human Pronunciation --Syllable in real voice --15 Professional Dictionary (Architecture, Bank, Telecommunication, Cosmetology, Economics, Foreign Investor, Law, Math Physics & Chemistry, Mechanics, Medicine, Nautical Navigation, Physics, Real Estate, Stock, Travel) -Practical Dictionary, Phrase Dictionary -Naturalization Question/Answer - Cosmetic Test -Power (2 Batteries AAA, a power adaptor with DC 5V/500m. This power source can be combined with batteries)If you have any question about dictionary, please contact me at: YIM: lkhiettrinh Or send me a message.