JZ-12W     Just plug in the accessory receiver in the USB port on the PC. It allows wireless data communication between the calcultor unit and PC, and easy transmitting of input numbers, caiculation results and operation symbols. The angle of hte receiver can be adjusted to maintian favorable radio wave reception status. The receiver can be stored inside the unit when not in use.     Accessory One receiver (Reception range: Equally sensitive in all directions and within a distance of 110 centimeters from the calculator unit.) Power consumption: 0.04W (Supplied through the USB port) Minimum System Requirements Operating System: Pre-installed Windows XP/2000 Professional/ME/98. Computer: IBM PC/AT or compatible PC (DOS/V) which meets the following requirements: Run on Windows XP/2000 Professional/ME/98, with a built-in USB port.     Copyright © 2003-2022 Javy's International Ltd. All Rights Reserved.