Accurately make calculations with this compact calculator. Loaded with functions to help make calculations and record-keeping easier, this calculator offers dual power options for easy portability. 1-line display shows up to 12 characters. Check function allows you to check your calculations up to 150 steps and print after your correction. Cost/sell/margin function makes it simple to price products and assess your profits. Reprint function lets you print multiple copies of your calculations. Clock and Calendar function lets you print the time and date on your receipts. Prints up to 2.4 lines per second in 2 colors. Compatible with 1-ply paper roll tape measuring 2.25" x 50'. Dual battery and AC power enables flexible use (batteries sold separately). Backed by the manufacturer's 1-year limited warranty.