Description: This oral calculator trains children's mathematical calculation skills in a fun game, making practice easy and enjoyable, stimulating their interest in learning math.This oral calculator can be used to train children's mathematical abilities in addition, subtraction, multiplication, and division, promoting their intellectual development and improving practical skills.Constructed from durable ABS material.Dimensions: 13.2cm x 7cm x 2.05cm.Primarily used for early childhood math education.Item Name: Calculator MachineMaterial: ABSFeatures: Durable, Reusable, LightweightPower Supply: USB ChargingBattery: 400mAhSize Details: Size: 13.2cm x 7cm x 2.05cm/5.2\" x 2.76\" x 0.81\" (Approx.)Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes: 1 x Calculator Machine 1 x Charging Cable