Messages can be sent without wires.

通过太阳光线传递的信息。

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However, not all devices can work effectively without wires.

然而，并非所有的设备能够有效地工作而无需电线。

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It allows the user to access content anywhere, anytime without wires. However, there are challenges as wireless is prone to interference.

利用无线网络，用户可以随时随地访问并获取信息，然而，易受干扰的缺陷仍然使其面临各种挑战。

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These implantable sensors have this in common: they self-contain what is needed to transmit information from inside your body without batteries and without wires.

FORBES: Ingestible, Implantable, or Intimate contact; How Will You Take Your Micro-scale Body Sensors

Using off-the-shelf gear, he has the whole town wired without wires.

FORBES: Digital Spin

And of course it can connect to a Smartphone without wires.

BBC: NEWS | Programmes | Click | Click Essentials: Bluetooth