The TX-220H is a compact, desktop calculator with an adjustable tilt display and easy-to-operate color-coded key tops. At one glance, you will be captivated by the sleek look of the TX-220H. Furthermore, you will be amazed at how easy it is to operate with its large color-coded key tops. The TX-220H also incorporates an adjustable tilt display with extra-large readouts and various calculating functions. Its dual power capability, both solar and battery, assure operation even in low light.