GPS devices that talk back

CNET reviews four GPS devices with voice command.

Corinne Schulze/CBS Interactive

Your car may not answer when you talk to it, but we've got four GPS devices that will. The latest, cutting-edge GPS devices not only guide you to destinations and show you traffic conditions, but also respond to voice commands. You can fit your car out like the Knight Industries Two Thousand with one of these devices. They'll help you get where you're going, but they won't make your car bulletproof.

See four GPS devices you can talk to.

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