FEATURE: 1.Sudoku logic in big screen with blue ground light; 2.1 million random puzzle; 3 levels of difficult; 3.Four type game with different evaluation rule; 4.Hints function; 5.Date, time, alarm and game mode switched; 6.Personal voice pronunciation; 7.Screen size: 69X59mm; 8.Powered by 3XAAA, not included; 9.Unite size: 128X76X19mm. Price USD 2.5 / PC Price Condition FOB Shenzhen Origin China Material ABS, Electronic components Packaging 80PCS/CTN Package Size 53 x 42 x 32 Centimeters Delivery lead time 7-20 days upon quantity Minimum order 1000 Supply ability 250K per month