Features: 1) Display: LCD screen, 63 x 51mm with backlights, touch screen 2) Game functions: a) 3 levels of difficulty b) Auto-solve function c) Helpful hints available 3) Power supply: 2 AAA alkaline batteries (not included) 4) Rules: fill in the grid so that every row, every column and every 3 x 3 box contain the digits 1 through 9 5) Direct number input touch pad with T/P pen 6) Fits in your pocket and the palm of your hand 7) Sounds for exciting play Inner packing: Color boxes Outer packing: 60pcs/ctn Carton dimensions: 59 x 34.5 x 40.5cm N.W.: 13kg G.W.: 14kg Conveyance: Qty/20\'\' FCL: 20,460pcs