Amazon Basics 991ES Plus Scientific Calculator | 417 Functions | Four-Line Natural Display | Dual Power Solar & Battery | Engineering & Student Calculator | Black REFURBISHED Customisable keys

Customisable keys

Built-In extention Rod Number of items ‎1 Optical zoom ‎4 x Maximum resolution ‎1080 Pixels Batteries Included ‎Yes Batteries Required ‎Yes Battery cell composition ‎Lithium Ion Does it contain liquid

Hsinmin Industria

Item Weight ‎130 g

or iPod touch (5th generation)

Amazon Basics 991ES Plus Scientific Calculator | 417 Functions | Four-Line Natural Display | Dual Power Solar & Battery | Engineering & Student Calculator | Black REFURBISHED Customisable keysFeatures 417 Advanced Scientific Functions: Equipped with 417 built in calculation functions including trigonometry, logarithms, exponentials, calculus, statistics, algebra, complex numbers, matrices, and vectorsideal for students, engineers, and professionals. Large Four Line Natural Text Display: Features a large four line screen with natural textbook style display, allowing formulas and results to appear exactly as written, making complex