Product Name: SudokuModel Number: SY-530Place of Origin: ChinaFeatures: 1) Display: large LCD screen 2) Mode: game A and game B 3) Time and date function 4) Alarm function 5) Game function 6) Sound hint 7) Million of puzzles for you to conquer 8) Power control: at game mode, auto power off after 8 minutes without operation / manual power on and off 9) Power supply: 2 x AAA alkaline batteries 10) Dimensions (L x W x H): 72 x 116 x 21mm 11) Multifunction game player with large LCD screen