Japanese pioneer car key on a your mobile

Nissan Motor, DoCoMo and Sharp have jointly developed a mobile phone able to function as an intelligent key for cars.

The device will incorporate Nissan's Intelligent Key system, already a standard feature in various Nissan vehicles, the firms said.

Nissan's Intelligent Key system has been installed in more than 950,000 Nissan models since 2002. It employs two-way wireless technology to automatically unlock and lock the car door and starts and stops the engine.

Nissan and Sharp have now integrated these capabilities into the new handset.

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