OSALO OS-991ES PLUS Engineering Scientific Calculator Dual Power Supply Calculadora with Button Battery 417 Functions for Scientific Calculator College Entrance Examination

Features: Perfect for easy viewing and shows calculation entry and result at the same time. LCD Display, Display expression same as textbook. With 417 functions and easy menu funciton. Dual power supply: button battery(LR44) + solar power supply. Suitable for students studying general math and science, pre-algebra, algebra, geometry, trigonometry, statistics, biology, and chemistry. Specifications: Brand Name: OSALO Model: OS-991ES PLUS Material: Display: LCD Max. Digits: 12 Style: Scientific Applicable Battery Type: Dual Power Supply Power Source: Button Battery(LR44 Included) + Solar Power Supply Usage: Scientific Calculator Item Size: 16.2 * 8 *1.4cm / 6.4 * 3.1 *0.6in Item Weight: 124g / 4.4oz Package Size: 19.1 * 8.6 * 3.8cm / 7.5 * 3.4 * 1.5in Package Weight: 187g / 6.6oz Package List: 1 * Calculator 4 * User Manuals(Chinese, English, Spanish, French)

Perfect for easy viewing and shows calculation entry and result at the same time. LCD Display, Display expression same as textbook. With 417 functions and easy menu funciton. Dual power supply: button battery(LR44) + solar power supply. Suitable for students studying general math and science, pre-algebra, algebra, geometry, trigonometry, statistics, biology, and chemistry.