Provide wide coverage, rich and accurate digital map and related services for major auto OEMs, portable navigation device vendors, websites and telecom carriers, etc.

为主流汽车厂商、互联网和无线领域的客户提供覆盖广泛，数据精确丰富的电子地图和相关服务；

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Experts know that portable device emit radiation which affects those wavelengths which aircraft use for navigation and communication.

专家知道便携式电子设备发出辐射能影响飞机导航和通讯所用的波长。

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Experts kn ow that portable device emit radiation which affects those wavelengths which aircraft use for navigation and communication.

专家知道该便携式设备会发出辐射从而影响飞机用来导航和通信所使用的波段。

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What do you get when you cross a portable navigation device and a cellphone?

ENGADGET: Switched On: Dash delivers open roads, open questions (Part 1)

TomTom today introduces TomTom Rider, a new portable navigation device created especially for bikers.

ENGADGET: TomTom Rider motorcycle GPS gets refresh, for those born to be guided

Nevertheless, some iPad users are employing the tablet like a portable navigation device (PND) to map out routes while they are sailing, hiking and driving.

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