We've seen mobile hotspots for cars before, but I don't think I've ever heard of one that uses the ODB-II communications port on your vehicle for power, freeing up that precious cigarette lighter for things like chargers. The ZTE Mobley is just that.

Power is, of course, provided from the ODB-II port on your vehicle, and the hotspot theoretically should only function when the vehicle is on or in accessory mode. This leaves your precious cigarette lighter free for things like chargers, and also removes the associated bulk of what is likely to be an at least semi-permanent accessory for your vehicle.

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