Patent ID: 6989752

Claim:
A security system for a movable item comprising: a transmitter and a receiving unit, the receiving unit being capable of being attached to the item, the transmitter being capable of transmitting a first signal and the transmitter being capable of transmitting a second signal, the receiving unit being responsive to the first signal from the transmitter and capable of emitting a first audible sound in response to the first signal so as to assist in determining the location of the item, the receiving unit being responsive to the second signal from the transmitter and being capable of emitting a second audible sound so as to indicate that the item is lost, stolen, or abducted, in response to the second signal, and wherein the first audible sound and the second audible sound are dissimilar, and wherein the transmitter transmits using a radio frequency carrier signal having a frequency in the range from about 300 MHz to about 440 MHz and all sub ranges subsumed therein.