The Seiko Oxford ER3700 is a handheld electronic dictionary that comes equipped with a calculator function, crossword solver, and spellchecker. Powered by batteries, this device is perfect for solving crosswords and looking up words in English. It also features various language games, making it a versatile tool for both work and leisure. Made by the reputable brand Seiko and manufactured in China, this electronic dictionary is a reliable and convenient tool for anyone in need of language assistance.