The product consists of three calculators from different brands: Texas Instruments (Ti-30Xa), HP 30b, and HP 30b Plus. These handheld scientific calculators have regular-sized keys, a regular-sized LCD display, and are powered by batteries. Made in China, they offer various features for solving mathematical and scientific problems. The HP 30b and HP 30b Plus models are not all charged, but they are still functional for basic calculations. Ideal for students, professionals, or anyone in need of a reliable calculator for everyday use. NOT ALL ARE CHARGED
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