Victor 1205-4 Portable Palm/Desktop One-Color Printing Calculator, 12-Digit LCD, BLK/WE. 12 digit calculator is perfect for the occasional user, especially in a small office or home office setting. Features a large LCD display for easy viewing. Contemporary black and white styling compliments any modern desktop décor. Environmentally friendly, this calculator is manufactured with 25% recycled plastic. You can count on the fast and reliable 2.0 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). Holds standard size paper on swing out arm or small roll inside case for ultimate portability. Other functions include: automatic tax keys, date/non-add key, percent key, backspace key, and 3 key independent memory. Operates on 4 AA batteries (not included) or on the included AC adapter. 2 year manufacturer's standard warranty.