Handheld Sudoku Electronic White Game, 5.5" x 3", Works Missing battery cover

Condition: tested-works, battery cover is missing

Description:
This is a good used Sudoku handheld electronic game player.

It has thousands of puzzles with 9 levels of difficulty.

It has 3 modes: Game, clock and calendar and alarm clock.

The game mode has an auto-grid memory function, help function and you can time yourself on how quickly you can finish the game.

Sudoku is a great game to help you improve your thinking a reasoning skills.