Auto Lock Screen once leaving and Auto unlock Screen once coming back

Function :

• effective range : around 2 meters
• the computer automatically enters " Lock Mode" when the user is away from computer by more than an effective range
• the computer automatically resumes normal operation when the user is back to within an effective range
• once the computer enters the "lock mode" , a password is required to use the computer if the transmitter / reveiver pair is not available to unlock the computer
• one transmitter can be shared with several receivers.

Specifications :

1. one unique "security Code" in the transmitter ; the PC will recognizes the code automatically.
2. operation frequencies : 315MHz
3. Transmitter Power Supply : DC 3V (CR2032 Type battery)
4. Battery Usage : Approximately 2000 hours
5. Receiver Power Supply : DC 5V -Provided by computer through USB port
6. Software Drive  : Support Windoes 98 /ME / 2003/XP /VISTA /WINDOWS 7