The Casio® SL-320TER+ is a practical 10-digit calculator with a double-sided case, has an easy-to-read LCD screen and a variety of tax calculations. The Casio® SL-320TER+ calculator has a dual power supply with both battery and solar cell for efficient energy consumption. The plastic buttons are sturdy and the double-sided case design provides clear layout and protection on the go. Includes a double-tap function, allowing you to press the next button while holding one down for faster and more efficient calculations. The Casio® SL-320TER+ has practical functions for financial purposes such as tax calculations and percentage calculations, as well as an independent memory, character change button and thousands separator, while the double zero key makes large sum calculations quick and easy. - Double-sided case for clear layout and protection on the go - Large and easy-to-read 10-digit LCD display - Double-press function for quick calculation - Combines battery and solar power - Plastic casing and plastic buttons - Independent memory - Percentage calculation - Currency conversions (3 conversion memories) - Tax calculation - Button for changing characters - Includes thousands separator - Key for double zeros - Dimensions (LxHxW): - Closed: 73 x 120 x 13 mm - Open: 141 x 120 x 7 mm