Arithmetic Exercise Toy Digital Display Voice Prompt 27 Keys USB C Arithmetic Training Machine for Kids Education

Digital Display: This arithmetic exercise toy adopts skin friendly and plastic. Designed with clear digital display. USB C : This arithmetic training machine with 100mAh battery can be used for 30 hours , supports USB C (USB cable not included). Multi Function: This math oral trainer with voice prompt supports addition, subtraction, multiplication and division tests, math games, math formulas, timel imited tests etc. Item Type: Arithmetic Exercise Toy Material: Plastic Model: V5 Battery Type: Inbuilt 100mAh Lithium Battery (Battery Included) Endurance: Continuous Use for About 30 Hours Speaker: 0.25W Screen: Black White Digital Display Charging: Usb C Charging (Cable Not Included) Keys: 27 Silicone Keys Functions: Single Digit Addition and Subtraction, Double Digit Addition and Subtraction , Multiplication and Division , Games, Addition, Subtraction, Multiplication and Division Formulas