Aurora pr710 12 digit display 2 colour printing calculator features light duty batterymains powered 2 colour blackred printout speed of 21lps high quality epson print head cost sell margin feature calculates any variation currency conversion for use with any currency one touch tax feature ideal for adding amp subtracting vat 9 metric conversions display or print date or time 1224hr clock format option ukus date format option large 12 digit lcd display 2 constants division amp m