Functions Effective range: around 2m Computer automatically enters lock mode, when the user is away from thecomputer by more than an effective range Computer automatically resumes normal operation when the user is back within an effective range Once the computer enters the lock mode, a password is required if the transmitter/receiver pair is not available to unlock the computer One transmitter can be shared with several computers Specifications: One unique security code, in the transmitterComputer automatically recognizes the code itself Operation frequencies: 315MHz/FCC and 434MHz/CE Transmitter power supply: DC 3V Battery usage: approximately 2,000 hours Receiver power supply: DC 5V provided by the computer through USB port Software driver: supports Windows 98SE, ME, 2000 and XP Features Wireless control Easy to use Protects confidential information