Affordable Price: At an affordable price, the CALCULATOR CT-712 offers great value for its functionality and features. Dual Power Drive: Equipped with dual power drive, the CALCULATOR CT-712 operates efficiently on both battery and solar power. Large Plastic Buttons: Large plastic buttons make this calculator easy to use, even for those with limited dexterity. 120 Steps Check & Correct: With 120 steps of check and correct functionality, this calculator ensures accuracy in your computations. 12-Digit Display: The CALCULATOR CT-712 features a 12-digit display, providing ample space for viewing complex calculations