The Sharpe EL-2607V is a solid desktop printing calculator with a large 12 digit Digitron display capable of fast, crisp 2 colour printing in black or red. The practical and robust calculator is fully portable being dual powered by 1 x CR2032 battery and mains power, so when you need to work on the go, you can continue with your calculations. With printing speeds of 4.5 lines per second, the EL-2607V is a well equipped 2-colour printing calculator. The compatible cartridge/ribbon is SH-GR51 which can be purchased separately. Printing Speed: 4.5 lines per second Printing Colours: Black and Red Decimal Setting (F-6-3-2-1-0-A) Rounding Function, 4 key memory, Resume function Double zero key (00), Correction key Tax calculation (Tax +/-), Grand total (GT) Item counter, Mark-Up / Mark-Down (MU) Average Calculations (Avg), Currency Conversion Time Calculation, Clock and Calendar Compatible cartridge/ribbon is SH-GR51 which can be purchased separately