A strong wireless signal provides cordless freedom up to 5 meters away from your PC. Or simply take the mouse with you when you're on the go with your laptop - when you're done, the tiny transceiver can be conveniently stored on the underside of the mouse. Setting up the keyboard and mouse is very easy: insert the batteries, plug in the tiny transceiver, and you're ready to go. This keyboard features Advanced Encryption Standard (AES) technology designed to protect your information by encrypting your keystrokes.