From the Manufacturer
Einstein Touch Sudoku contains more than 800 puzzles. They are all easy to work with the included stylus. It has an ergonomic lightweight design so you can take it anywhere. This allows you to save game in memory so you can continue at any time. It comes with a Hint Key in case you get stumped. Choose from easy, medium or hard puzzles so you can play at your own pace.
The Touch Sudoku Electronic Puzzle Generator from Excalibur Electronics offers you 999 specially selected puzzles for Sudoku whenever and wherever! This handheld puzzle game features three levels of difficulty so you can increase the challenge as you learn the game. Innovative technology allows you to save and retrieve up to 3 separate games, while a save mode has your back in the event of dead batteries or quick getaways! Ergonomically designed, this electronic puzzle game includes a stylus for easier play while the intuitive touch screen control ensures accuracy. Theres even a hint key in case you get stumped. The Touch Sudoku Electronic Game requires 2 AAA batteries (not included).