equaling over 400% larger than standard keyboard printing. The keyboard is manufactured with high quality membrane switches designed to withstand over 10 million keystrokes. Included with the keyboard is a matching wireless 800 DPI optical wireless mouse and USB plug receiver with battery recharger. Two (2) AA batteries are required for both the keyboard and mouse (not included). Technical Specifications Power Rating: 5 Volts Mouse Radio Frequency: 2.4GHz Mouse Optical Resolution: 800DPI Dimensions: Height 1.25 in. (3.18 cm); Width 18.5 in. (46.99 cm); Depth 7.5 in. (19.05 cm) System Requirements: Windows Vista XP 2000: USB Port Agency Approvals: FCC CE RoHS ESTABLISHING RF COMMUNICATION MANUALLY Between Your Mouse Keyboard and Computer: 1. Press the CONNECT button located on the receiver. 2. Th en press the CONNECT button located on the bottom of the mouse. 3. Press the receiver CONNECT button again. 4. Finally press the CONNECT button located on the bottom of the keyboard. 5. Repeat Steps 1–4 if necessary.