mini office calculator portable electronic digital lcd finance accounting deskcalculators

- 12 digital lcd wide screen display, clear and comfortable viewing feeling. - automatic shutdown, the lemo calculator will be shutdown automatically after 12 minutes(in non-use period) - simple and exquisite, less is more, an artwork accompanying with you. - dual power driving supply, battery + light energy, automatic switching mode, when there is light, it switches to the light energy mode, or powered by the button battery ag10, which can use for much hours.