USB Trackball Numeric Keypad/Desktop Calculator, 12-Digit Display for $9.90

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.