作者: David S. McNab , Stephen N. D. Larson , David J. Kalhok , Scott S. Walker , Patrick Y. D. Boutet
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摘要: A remote tracking and communication device comprising a housing which encloses processor, memory, position locator, first transmitter, second transmitter. Each of the latter components are electronically coupled to processor. Both transmitters adapted send receive wireless voice data signals in digital format. The further comprises battery, is removably affixed each component within housing, speaker microphone button When pressed, activate communications with call center using