Voice Accounting

Hint: Just Type from the Numeric Keypad itself &
Also Adjust Speaker Volume to the desired level.

Can attach a USB Keyboard with Numeric Keypad as well.

Pressing esc key will now clear the input field fully.
Pressing Backspace key will clear input, one by one.

For typing Plus & Multiply Signs from Main Keyboard, use Shift+Plus (twice) & Shift+Multiply(twice), the second key is repeated twice here.