Product features: Basic functions: Percent addition subtraction multiplication division insert delete scroll. Display: 2 lines x 11 characters. Features: Color-coded buttons 5 memory registers. Power source: Solar panel. Product description: Texas Instruments TI-30X IIS - scientific calculator. Product type: Scientific calculator - LCD - 10 digits +2 exponents. Scientific functions: Decimal pi random number trigonometry gradian radian degree coordinate conversion factorial permutation combination fraction statistics fraction from to decimal hyperbolic logarithm angle conversion variables powers scientific notation parenthesis (23 levels) fraction simplification. Key selling points: Two-line previous entry fraction features 2-variable statistics. Benefits of this product: The two-line display scientific calculator combines statistics and advanced scientific functions and is a durable and affordable calculator for the classroom. Quick start guide user manual.