Whether in the office or at home the 1208-2 is the perfect printing calculator for the job. The extra large LCD display makes for easy viewing. Modern black and white styling compliments any office d?cor. Manufactured with recycled plastic. You can count on the fast and reliable 2.3 lines-per-second ink roller printer. Cost/sell/margin keys make for quick and easy profit margin calculations (simply enter two variables and the third automatically appears). Other functions include: time/date automatic tax keys item count date/non-add key change sign key percent key backspace key and 4 key independent memory. Operates on 4 AA batteries (not included) or on the included AC adapter.