Lindy 42940 security access control system

USB Wireless PC Lock The automatic solution for securing your PC!
This innovative little security system consists of a wireless transmitter and receiver unit. The receiver plugs into a USB port on a PC; the transmitter is carried by the user. The computer automatically 'locks' the keyboard, preventing access, when the transmitter is out of range. When the transmitter returns within range the computer 'unlocks'. Password input can be used when the transmitter is out of range. One transmitter can be shared with multiple computers.