Handheld Printing Calculator is perfect for the occasional user, especially in a small office or home office. Calculator has a 12-digit liquid crystal display (LCD) and prints two colors at approximately 2.1 lines per second. Four-key memory includes memory plus, memory minus and recall/clear memory keys. Functions include tax keys, floating/fixed decimal, adding mode, and double-zero key. Calculator operates on four AA batteries (included) and AC adapter (not included).