Sharp Electronics EL-334TB Twin Power 10-Digit Calculator with Kick Stand Automatically switches from solar to battery power in low light Extra large 10-digit display LCD display with punctuation Kick stand display Includes memory plus. Memory minus, recall memory, and clear memory keys Dual-power, switches from solar to battery power in low light Extra-large 1-line, 10-digit LCD with punctuation Dual-power, switches from solar to battery power in low light Kick-stand converts calculator from handheld to desktop Large rubberized buttons 4-key memory; easy-to-use design