| 摘要 |
A multi-functional fob provides at least one of the features selected from a programmable lock/unlock button; a voice activated button; an ice-scraper; a credit card strip; and a rechargeable interface. One or a combination of the features may be integrated into a single fob. A fob-retaining device may be provided. Each fob function may be integrated into an electronic device such as a PDA, a cellular phone, a two-way radio, a wristwatch, a voice recorder, an audio player, a video player, or a multi-communication signal fob repeater. Optionally, the fob may have a compass and a timer. Additionally, a multi-functional fob communication system is provided to provide remote communications between a receiver in a fob-activated device and a remote electronic fob device.
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