12-digit Mechanical Calculator Voice Model Calculator Mechanical Learning Tools

Label:Yes materiel: plasitic color:brown/sky blue/pink/yellow/green product type:arithmetic calculator size:140*165mm(5.51*6.50in) packing: 1pc mechanical calculator(without battery) display number of digits:12 Note: 1.There is a slight difference in button color between the voice and silent versions. 2.Due to manual measurement, please allow 1-2cm error. 3.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. thank you!