Big Number Pocket Talking Calculator with Clock - This 10 digit-talking calculator also acts as alarm clock and features basic math functions including percentage with memory. This visual aid allows you to press the time button to hear time and echoes keys while setting. The talking calculator also displays the date. This visual aid offers large keys measuring approximately 1/2on black numbers against light gray background. Operates on 2 'AA' batteries (not included). Female voice. Volume control w/16 diff. melodies. 90 day warranty.