[Portable Smart Sudoku Puzzle Game]: This Smart Sudoku Puzzle Game is a handheld 4-in-1 puzzle game perfect for long drives, flights, or even just spending quiet time at home. [Enhance Brain Function]: This smart brain teaser game for kids features challenging exercises that improve early math, critical thinking, logic, and problem-solving skills for children aged 4-12. It's also a challenging puzzle game for adults. [Multiple Game Modes]: Smart Sudoku puzzles offer 6x6 and 4x4 Sudoku grids, automatic timers, hints, and 1v1 battles. Create a fun-filled gaming experience that fosters kids' creativity, independent thinking, and healthy competition. [Engaging Puzzle Variations]: Our Color Sudoku and Magnetic Sudoku games are educational toys that keep kids busy, with 3500 unique challenge options from beginner to master level. Colour:As Shown Material:ABS Package Contents: 1 * Smart Sudoku Puzzle Games 1 * USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.