说话计算器，闹钟和音乐盒在一个
公布数据条目和计算结果
音量控制和关闭选项10位数字15旋律选择
旋律可用作警报
实验表明，说话计算器实际上减少了输入错误，并减轻了由数据输入检查引起的压力

Talking calculator, alarm clock and music box in one
Announces data entries and calculation results
Voice volume control and shut-off option 10-digit 15 melody selections
Melodies can be used as alarms
Experiments have shown that talking calculators actually reduce entry mistakes and alleviates stress caused by data entry checks