Instead of going through the power lines, some systems use radio waves to communicate, which is also how WiFi and cell phone signals operate.

除了通过电线来实现这项技术，一些系统也会采用无线电波来进行交流，也就是我们常用的WiFi和无线手机信号。

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Data transmission is realized by technologies common in everyday life including blue tooth, cell phone, infra-red, wifi, and wired technologies, all of which operate as part of a network.

通过技术实现数据传输常见于生活中的方方面面，包括蓝牙、手机、红外线、无线、有线技术，它们都作为网络的一个组成部分发挥作用。

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Impressively, the app will automatically start caching the areas you visit the most when your device is plugged in and connected to WiFi, such as when you're giving your phone its nightly charge.

更加令人称赞的是，当你的设备连接到usb或者无线网络的时候(例如说，晚上充电的时候)，程序会自动下载你访问最多的区域地图。

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What it really means right now is your Vonage line or your WiFi phone, for instance, which were already tappable before through traditional means, can now be tapped right through the Internet.

ENGADGET: FCC votes 5-0 to tap VoIP calls

But the Council has influence and it is recommending that European governments take precautionary steps to restrict mobile phone and WiFi usage, particularly among young people, and, in the case of WiFi, in the home.

FORBES: Connect

Called The Committee on the Environment, Agriculture and Local and Regional Affairs, its report calling for restrictions on mobile phone and WiFi usage was finalised over a week ago but is only just finding its way into the news media.

FORBES: Connect