Techno Source Sudoku Handheld Electronic Game Ages 8+ 100000 Puzzles New Sealed

Brand: Techno Source  Item: Sudoku handheld electronic logic puzzle game with touch screen interface.  Style: Pocket-sized electronic Sudoku game that displays a 9x9 grid on an LCD screen and is controlled with a stylus.  Age level: Recommended for ages 8 and up.  Theme: Sudoku number logic and strategy puzzle game.  Model: No. 20700.  Features: Includes over 100,000 built-in puzzles, touch screen input with stylus, beginner and advanced modes, four difficulty levels in each mode, built-in tutorial training mode, and a slider control marked for beginner, off, and advanced settings.  Power: Uses one CR2032 button cell battery; packaging states that one battery is included.  Design details: Silver handheld unit with orange Sudoku graphics, numeric row 1–9 along the bottom of the display, and an orange indicator light icon beneath the power slider.  Packaging: Clear clamshell retail package with white and orange Sudoku artwork, large circular Sudoku logo, and tagline describing it as the ultimate logic puzzle.  Instructions overview: Back of package explains that players fill each row, column, and 3x3 box with the numbers 1 through 9 and notes that math is not required.  Identifiers: UPC: 801561207002; model number 20700 printed near the barcode.  Manufacturing details: 2005 Techno Source, website listed as made in China.  Keywords: Techno Source Sudoku handheld game, electronic Sudoku puzzle, touch screen logic game, pocket puzzle device, strategy brain teaser, travel electroni