Based on the Merriam-Webster's The Official SCRABBLE® Player's Dictionary, 4th edition, this helpful handheld device will be invaluable to players at all levels, who want to master the SCRABBLE® game. It  instantly validates over 100,000 words and provides brief definitions. This device has easy to use features which enhance SCRABBLE® playing skills by building vocabulary. It provides solutions ranked by score and includes three challenging word games that can be played on three different skill levels. It offers easy-to-read large type, on-screen help, automatic shut-off and adjustable contrast control. Requires four AAA batteries (not included).