USB Trackball Numeric Keypad/Desktop Calculator, 12-Digit Display

USB Trackball Numeric Keypad/Desktop Calculator
Display Digits—12
Digit Size—16mm
Angled Display
Automatic Sales Tax
Percent Add-On/Discount
Memory—3-Key
Backspace Key
Battery/Solar Powered—Operating battery included
Size—4-1/2w x 7-1/4d
Replacement Battery—DURDL2016BPK (sold separately)
Portable, multifunction, general purpose calculator for handheld or desktop use. Includes USB cable for connecting to PC. LCD display. Vinyl travel pouch.