The Seiko ER3700 Oxford Crossword Solver is a handheld electronic device that combines a thesaurus, spellchecker, and crossword solver in one convenient tool. Powered by batteries, this device is designed to assist with English language tasks, making it a useful tool for business, office, and industrial settings. Manufactured in China by the reputable brand Seiko, this multifunctional gadget is a practical and efficient tool for improving vocabulary and solving crossword puzzles.