calculator 4 pack (2 basic black and 2 upgraded silver)

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【DUAL POWER】Solar (works only in bright light) and battery (one AA battery NOT included). Automatically power off, save more energy. Note: Please insert one AA battery for continuous and accurate use
【12-DIGIT CALCULATOR】12 digits make the calculator more useful for large calculations. Suitable for businessmen, workers, teachers, students or anyone who needs to do some kind of calculation from time to time.
【LARGE BUTTON DESIGN】Non-stick plastic large button, new material, more durable. The calculators adopt scientific large button design in line with the use of human habits and comfortable touch.
【LARGE DISPLAY】Large eye angle vertical display, easy to read, easy to carry
【NEW FUNCTION KEYS】Square Root, AutoPlay and Verify keys added. More functions, more facilities!