✭ with 3D effect.
When you press a key, it acts like a real keyboard and number or sign FLIES to the display.
✭ The NUMBERS are large and are easily distinguished.
✭ operations are displayed on the display.
✭ You can program a key
for VAT.
✭ You can calculate any PERCENTAGE easily.
✭ have another screen on the bottom with the history of operations that you are performing,
swiping can see them.
✭ You can easily delete history.
✭ You can enable or disable the sound of the keys.
✭ With change the background color.